久久久福利视频_公司新聞_臨清市瑞龍鉆具有限公司

2020-07

1）地層巖石的研磨性。研磨性地層會(huì )使切削具過(guò)快磨損，機械鉆速降低很快，鉆頭進(jìn)尺少，對于牙輪鉆dao頭特別會(huì )磨損鉆頭的規徑齒以及牙輪背錐與爪尖，使鉆頭直徑磨小、軸承外露，加速鉆頭的損壞。?2）淺井段與深井段。為獲得最佳經(jīng)濟效益，在淺井段選用機械鉆速較高的鉆頭類(lèi)型，深井段應考慮使用壽命較長(cháng)的鉆頭，以減少起下鉆等非生產(chǎn)時(shí)間。?3）深部黏塑性地層。根據以往資料深部鉆遇石英含量較高的泥巖、頁(yè)巖等巖石時(shí)，如選

2020-07-04

2020-07

硬質(zhì)合金鉆頭的基本類(lèi)型——瑞龍鉆具

可供用戶(hù)選擇的硬質(zhì)合金鉆頭分為四種基本類(lèi)型：整體硬質(zhì)合金鉆頭、硬質(zhì)合金可轉位刀片鉆頭、焊接式硬質(zhì)合金鉆頭和可更換硬質(zhì)合金齒冠鉆頭。每種鉆頭都具有適合特定加工條件的優(yōu)點(diǎn)。整體硬質(zhì)合金鉆頭整體硬質(zhì)合金鉆頭適于在先進(jìn)的加工中心上使用。這種鉆頭采用細顆粒硬質(zhì)合金材料制造，為延長(cháng)使用壽命，還進(jìn)行了TiAlN涂層處理，專(zhuān)門(mén)設計的幾何刃型使鉆頭具有自定心功能，在鉆削大多數工件材料時(shí)具備良好的切屑控制及排屑性能。

2020-07-04

2020-07

PDC鉆頭的正常磨損和非正常磨損

PDC定向鉆頭的磨損分正常磨損和非正常磨損兩種，正常磨損表現為鉆頭心部至外側切削齒磨損逐漸加重，設計良好的鉆頭基本可實(shí)現等速磨損，PDC片無(wú)斷裂、掉片、脫落現象、鉆頭體沖蝕正常、隨著(zhù)進(jìn)尺的增加磨損量逐漸增大。PDC鉆頭的非正常磨損往往表現為:?1)燒鉆。鉆進(jìn)過(guò)程中若鉆壓過(guò)大，轉速過(guò)快，鉆頭工作面與巖石之間強烈摩擦會(huì )產(chǎn)生大量的熱量，斷水、干鉆或地層漏失出現沖洗液假循環(huán)等帶來(lái)沖洗液不足，或水眼堵塞等，

2020-07-04

2020-07

怎樣選擇合適的鉆頭——瑞龍鉆具

為了獲得最佳的鉆進(jìn)效果和技術(shù)經(jīng)濟指標，必須合理選擇鉆頭，選型不當就可導致鉆頭提前磨損，影響鉆頭使用壽命，因此，應在對鉆頭結構和工作原理充分理解的基礎上，從生產(chǎn)實(shí)際出發(fā)，綜合考慮鉆進(jìn)工藝、地層條件、鉆進(jìn)設備及其他因素對鉆頭使用的要求，合理選擇鉆頭。?煤礦井下隨鉆測量定向鉆進(jìn)配套使用孔底馬達，鉆孔深度大，同時(shí)還需進(jìn)行分支孔鉆進(jìn)。因此，應選擇鉆速快、壽命長(cháng)、造斜穩斜性能好的胎體式PDC定向鉆頭，由于其鉆

2020-07-04

2020-07

中心通纜式鉆桿一般應該如何裝配？

中心通纜式鉆桿在施工定向孔過(guò)程中，把孔底信號傳遞給孔口監視器，因而要求其電阻率低，信號輸出穩定、可靠。鉆桿的裝配要認真仔細，確保裝配質(zhì)量，為此鉆桿裝配應嚴格按照以下步驟進(jìn)行:?1)先將穩定器6裝入鉆桿體內，然后用內卡簧鉗將孔用彈性擋圈裝至鉆桿體內，并將定位擋圈4裝至彈性擋圈處;?2)將密封圈裝入線(xiàn)管5的密封槽后，與塑料母接頭7組裝在一起，并將組裝體從鉆桿體公接頭端裝入鉆桿體;?3)用專(zhuān)用工具將塑料

2020-07-04

2020-07

中心通纜鉆桿的詳細介紹

一、中心通纜式鉆桿的結構原理?中心通纜式鉆桿由鉆桿體、傳導裝置、絕緣裝置和支撐裝置四部分組成，如圖5-10、圖5-11所示，而傳導裝置、絕緣裝置、支撐裝置構成了鉆桿的中心通纜裝置，影響著(zhù)隨鉆測量信號的傳輸。??1.鉆桿體?采用摩擦焊接方式將鉆桿體與公母接頭焊接為一體。鉆桿體不僅是中心通纜式鉆桿其他部分的載體，也是保證定向鉆進(jìn)施工的首要條件，其性能好壞直接決定了施工的安全性。?2.傳導裝置?中心通纜

2020-07-04

< 1...81 82 83...94 >

MESSAGE BOARD

留言板

不論您有任何關(guān)于產(chǎn)品的問(wèn)題，您都可以給我們留言，我們會(huì )安排專(zhuān)業(yè)團隊為您回復！

* 留言?xún)热?/span>

</div>
    </div>
</div>
</div>
</div><div   id="usgw66giq8"   class="e_container-17 s_layout">
    <div   id="usgw66giq8"   class="cbox-17-0 p_item"><div   id="usgw66giq8"   class="e_richText-18 s_title clearfix">
    <p style="font-size:14px;line-height:24px"><span style="font-size:16px;"><span style="color:#FF0000;"> * </span><span style="color:#000000;">手機</span></span></p>

</div></div>
    <div   id="usgw66giq8"   class="cbox-17-1 p_item"><div   id="usgw66giq8"   class="e_input-12 s_form1 form-group " needjs="true" required>
    <div   id="usgw66giq8"   class="">
        <div   id="usgw66giq8"   class="input-group">
            <input type="text" class="form-control s_form-control s_input p_input" name="text1738985501281" data-name="e_input-12"
                placeholder="請輸入手機號" 
                 
                
            >
            <div   id="usgw66giq8"   class="invalid-feedback"></div>
        </div>
    </div>
</div></div>
</div><div   id="usgw66giq8"   class="e_container-20 s_layout">
    <div   id="usgw66giq8"   class="cbox-20-0 p_item"><div   id="usgw66giq8"   class="e_richText-21 s_title clearfix">
    <p style="font-size:14px;line-height:24px"><span style="color:#000000;"><span style="font-size:16px;">    郵箱</span></span></p>

</div></div>
    <div   id="usgw66giq8"   class="cbox-20-1 p_item"><div   id="usgw66giq8"   class="e_input-13 s_form1 form-group " needjs="true" >
    <div   id="usgw66giq8"   class="">
        <div   id="usgw66giq8"   class="input-group">
            <input type="text" class="form-control s_form-control s_input p_input" name="text1738985501281" data-name="e_input-13"
                placeholder="請輸入郵箱" 
                 
                
            >
            <div   id="usgw66giq8"   class="invalid-feedback"></div>
        </div>
    </div>
</div></div>
</div><a class="e_formBtn-14 s_button1 btn btn-primary" href="javascript:;" needjs="true">
    <span>提交</span> 
</a></div>
    <input name="jumpPage" type="hidden" value="/successfully.html">
    <input name="i18nJson" type="hidden" value="{"minLength_12":"您輸入的內容不能少于%len個(gè)字符","minLength_13":"您輸入的內容不能少于%len個(gè)字符","required_11":"請輸入內容","maxLength_13":"您輸入的內容不能多于%len個(gè)字符","required_12":"請輸入內容","maxLength_12":"您輸入的內容不能多于%len個(gè)字符","maxLength_11":"您輸入的內容不能多于%len個(gè)字符","required_13":"請輸入內容","minLength_11":"您輸入的內容不能少于%len個(gè)字符"}">
    <div   id="usgw66giq8"   class="ptishiCon">
        <div   id="usgw66giq8"   class="pl_toast">
     <span id="usgw66giq8"    class="pl_toast_con"><span>%{tishi_zhanwei}%</span></span>
</div>

    </div>
</form></div>
</div></div>
</div>
 <input type="hidden" name="propJson" value='{"state_13":"normal","business_14":[],"rule_10":[],"validate_13":{"minLength":{"msg":"您輸入的內容不能少于%len個(gè)字符","state":false,"value":5},"custom":{"msg":"","reg":"","state":false},"required":{"msg":"內容不能為空","value":false},"maxLength":{"msg":"您輸入的內容不能多于%len個(gè)字符","state":false,"value":128}},"validate_12":{"minLength":{"msg":"您輸入的內容不能少于%len個(gè)字符","state":false,"value":5},"custom":{"msg":"","reg":"","state":false},"required":{"msg":"內容不能為空","value":true},"maxLength":{"msg":"您輸入的內容不能多于%len個(gè)字符","state":false,"value":128}},"validate_11":{"minLength":{"msg":"您輸入的內容不能少于%len個(gè)字符","state":false,"value":5},"custom":{"msg":"","reg":"","state":false},"required":{"msg":"內容不能為空","state":true,"value":true},"maxLength":{"msg":"您輸入的內容不能多于%len個(gè)字符","state":false,"value":128}},"showLabel_11":false,"customParam_13":"","customParam_12":"","showLabel_12":false,"showLabel_13":false,"state_11":"normal","state_12":"normal","action_14":1,"customParam_11":"","ddItem_11":{},"cuname_12":"text1738985501281","cuname_11":"textarea1738985395475","ddItem_12":{},"ddItem_13":{},"imgList2_7":[],"cuname_13":"text1738985501281","logic_10":[],"space_7":0,"logic_14":[],"prompt_14":"","async_10":{"status":1,"target":"clue","relation":[]},"initType_11":1,"initType_13":1,"value_13":"","initType_12":1,"enterSubmit_13":false,"enterSubmit_12":false,"notice_10":{"rules":[{"code":"submit","title":"表單提交成功","user":2}],"status":1},"href_7":{"type":"","value":"","target":""},"showPlaceholder_12":true,"showPlaceholder_13":true,"enterSubmit_11":false,"showPlaceholder_11":true,"setting_7":{"fit":"contain","errorUrl":"","needThumb":"true","isLazy":"true"},"value_11":"","value_12":"","type_12":"text","type_13":"text","imgList1_7":[],"reload_14":1,"datasource_13":{},"datasource_12":{},"datasource_11":{},"placeholder_13":"請輸入郵箱","submit_10":{"obj2":{"type":"customPage","value":{"type":"link","params":[],"value":"/successfully.html"},"target":"_self"},"obj1":{"result":1,"request":[],"reload":1,"promptTime":2,"prompt":""},"logic":[],"type":2,"obj3":{}},"placeholder_12":"請輸入手機號","type_14":1,"placeholder_11":"請輸入留言?xún)热?quot;,"sourceUuid_10":"1888069462905716736","basic_10":{"submitLimit":{"unit":1,"count":1,"interval":1,"peopleLimit":1,"limitRule":1},"submitTime":{"limit":2,"startTime":"","endTime":"","prompt":""},"formInfo":{"app":"120113","name":"db","title":"底部留言"},"promptDom":"<div class=\"pl_toast\">\n     <span class=\"pl_toast_con\"><span>%{tishi_zhanwei}%</span></span>\n</div>\n","advanced":{"customState":[{"select":true,"label":"未處理","value":1},{"label":"審核通過(guò)","value":2},{"label":"審核駁回","value":3}],"message":1}},"label_11":" 留言?xún)热?quot;,"label_12":"手機","label_13":"郵箱","formId_10":"1337748989301006336"}'/></div><div   class="usgw66giq8"   id="c_effect_109-1739002060020">
<link type="text/css" rel="stylesheet" href="/upload/css/0566701ec9854ac0ab4fd15961c018ef.css?instance=undefined&viewType=undefined&v=undefined&siteType=undefined">
<div   id="usgw66giq8"   class="e_loop_sub-1 s_list">
    <div   id="usgw66giq8"   class="zxbox">
        <div   id="usgw66giq8"   class="p_backtop"></div>
            <div   id="usgw66giq8"   class="cbox-1 p_loopItem"><p class="e_text-2 s_title zx_haoname">
        <a href="tel:400-965-666" target="_blank" rel="nofollow">
    <span>在線(xiàn)客服</span>
        </a>
</p><div   id="usgw66giq8"   class="e_icon-10 s_title">
    <svg t="1660889958708" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="4845" width="200" height="200"><path d="M362.14417387 854.74958293l0 1.2901056c-6.9880736 0-12.11266027 0.53754453-15.12290774 0.53754454l-3.54779093 0c-74.46777493 0-134.457696-59.55988587-136.53620053-133.92015254-1.14676053-36.51716267 12.04098773-71.85172693 37.05470613-98.40640533 25.0137184-26.5546784 58.84316053-42.10762133 95.36032213-43.14687253 0.35836267 0 4.01366293-0.2150176 4.3361888-0.2150176 28.59734613 0 56.01209493 8.95906773 79.59236267 26.1246432 33.07688 11.68262507 66.51212267-4.65871573 99.15896747-48.45064107 32.50349973-43.46939947 39.34822827-77.94389333 20.31916693-102.42006827-6.773056-4.87373333-13.2952576-10.6792096-19.74578667-17.55977386-1.14676053-1.1109248-2.1860128-2.29352107-3.18942826-3.54779094-21.3584192-24.11781227-33.61442453-54.6503168-34.5820032-86.11456426-2.07850347-75.47119147 57.40970987-138.54303147 132.5583744-140.65737174 0.35836267 0 3.87031787-0.07167253 4.19284373-0.07167253 63.21518613 0 119.11977173 44.7953408 132.88090027 106.57707627 11.1092448 34.29531307 39.49157333 170.150624-97.00879147 352.62892693C531.57807253 836.50891947 409.0180192 854.74958293 362.14417387 854.74958293L362.14417387 854.74958293zM357.73631253 785.83642987c20.39083947 0.465872 127.541296-2.4010304 244.8334176-159.65059627 119.80066027-160.1881408 92.52925653-272.53485653 85.82787414-293.46323947-7.6331264-33.5069152-35.2628928-55.689568-66.54795947-55.689568-39.49157333 1.1109248-68.9489888 32.4318272-67.94557333 69.91656854 0.60921707 19.88913173 10.0341568 34.4028224 17.8106272 43.00352746 0.2508544 0.28669013 0.50170773 0.57338027 0.71672533 0.8600704 4.3361888 4.69455147 8.38568747 8.20650667 12.4351872 10.82255467 2.54437547 1.68430507 4.90956907 3.691136 6.91640107 5.98465707 21.1075648 23.79528533 61.96091627 90.16406293-14.29867307 192.1182592-49.23903893 65.9029056-99.73234773 79.69987093-133.382608 79.73570773-17.30891947 0-34.51033067-3.54779093-51.10252587-10.464192-2.86690133-1.18259733-5.59045867-2.7952288-8.0273248-4.73038827-8.56486933-6.7372192-22.68436053-14.8003808-41.3192224-14.8003808-20.4266752 0.57338027-37.16221547 8.09899733-49.52572906 21.21507414-12.3993504 13.18774827-18.921552 30.42499627-18.38400854 48.5223136 1.03925227 36.9830336 30.81919467 65.86706987 67.73055574 65.86706986 0.17918187 0 0.2150176 0.0358368 0.07167253 0.07167254 1.2901056-0.2150176 2.68772053-0.39419947 3.5119552-0.465872C350.6765664 784.72550507 354.29602987 785.0121952 357.73631253 785.83642987L357.73631253 785.83642987zM515.95345813 997.8438208c-64.75614507 0-127.57713173-12.6502048-186.7428192-37.52057813-17.52393707-7.4181088-25.73044373-27.55809387-18.34817173-45.082032 7.382272-17.55977387 27.55809387-25.694608 45.082032-18.38400854 50.63665387 21.28674667 104.462736 32.14513707 160.00895893 32.14513707 227.77535147 0 413.0488832-185.27353173 413.0488832-413.0488832 0-227.73951467-185.27353173-413.0488832-413.0488832-413.0488832S102.90457493 288.2139424 102.90457493 515.98929387c0 77.8722208 21.7884544 153.70177493 63.00016747 219.3179904 10.06999253 16.1263232 5.232096 37.34139627-10.8583904 47.4472256-16.0904864 10.10582933-37.34139627 5.26793173-47.4472256-10.8583904-48.16395093-76.65378773-73.5718688-165.1335456-73.5718688-255.9068256 0-265.690128 216.16439893-481.89036373 481.89036373-481.89036374s481.89036373 216.16439893 481.89036374 481.89036374C997.80798507 781.67942187 781.64358613 997.8438208 515.95345813 997.8438208L515.95345813 997.8438208z" p-id="4846"></path></svg>
</div><p class="e_text-6 s_title zx_type">9</p><div   id="usgw66giq8"   class="e_container-5 s_layout zx_xjie">
    <div   id="usgw66giq8"   class="cbox-5-0 p_item"><div   id="usgw66giq8"   class="e_subImg-4 s_img">
            <img src="" alt="在線(xiàn)客服" title="在線(xiàn)客服" la="la" needthumb="true"/>
</div>
<p class="e_text-7 s_title zx_zh">
        <a href="tel:400-965-666" target="_self" rel="nofollow">
    400-965-666
        </a>
</p></div>
</div></div>
            <div   id="usgw66giq8"   class="cbox-1 p_loopItem"><p class="e_text-2 s_title zx_haoname">
        <a href="mailto:rldrill@rldrill.com" target="_blank" rel="nofollow">
    <span>rldrill@rldrill.com</span>
        </a>
</p><div   id="usgw66giq8"   class="e_icon-10 s_title">
    <svg t="1631600011853" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="5803" width="128" height="128"><path d="M983.899806 785.385782V224.886223h0.180631l-0.180631-4.696419c-0.180632-5.238314-0.722526-10.476627-1.806315-15.714941-2.890104-25.469042-21.675781-44.977245-45.519139-47.686717H122.287529c-11.741048 0-23.482096 1.625684-34.861881 5.238314-30.346093 10.295996-50.757453 40.100194-50.576821 74.058917v534.849885c-0.361263 21.314518 5.780208 42.087141 17.701887 59.789028l0.361263 0.722526 5.418946 3.973893c18.243782 21.856412 44.977245 34.319986 73.517022 34.500618H904.421944c37.751984 0 70.265655-27.094726 79.477862-66.291763l0.180631-0.541894c0.361263-5.96084 0.361263-11.741048-0.180631-17.701888zM390.16405 547.494091l55.453872 49.854295 43.893456 40.100194c5.418945 5.96084 13.005468 9.57347 21.133886 9.57347 7.947786 0 15.534309-3.431999 21.133886-9.57347l101.153642-91.941436 272.753572 263.721997H126.622685L390.16405 547.494091z m120.119951 30.346092L111.449638 216.03528H115.604163c214.409596-0.903158 703.559711-2.890104 793.875463-0.361263l-399.195625 362.166166z m165.458458-69.72376l251.619686-227.956959v474.518963L675.742459 508.116423z m-328.568707 0.180631L93.205856 760.278003V278.895043l253.967896 229.402011z" p-id="5804"></path></svg>
</div><p class="e_text-6 s_title zx_type">8</p><div   id="usgw66giq8"   class="e_container-5 s_layout zx_xjie">
    <div   id="usgw66giq8"   class="cbox-5-0 p_item"><div   id="usgw66giq8"   class="e_subImg-4 s_img">
            <img src="" alt="rldrill@rldrill.com" title="rldrill@rldrill.com" la="la" needthumb="true"/>
</div>
<p class="e_text-7 s_title zx_zh">
        <a href="mailto:rldrill@rldrill.com" target="_self" rel="nofollow">
    rldrill@rldrill.com
        </a>
</p></div>
</div></div>
        <div   id="usgw66giq8"   class="p_backbottom"></div>
    </div>
    <div   id="usgw66giq8"   class="zx_btm_o"></div>
</div>
<script src="/upload/js/3b40c5321d4a424a8951ae1ecddfaac5.js?instance=undefined&viewType=undefined&v=undefined&siteType=undefined"></script>
<script src="/upload/js/d1fd3c1642ba450fb712d2542fad9bca.js?instance=undefined&viewType=undefined&v=undefined&siteType=undefined"></script>
 <input type="hidden" name="propJson" value='{"href_4":{"type":"none","value":"","target":""},"href_7":{"transport":[],"type":"field","value":"link","target":"_self"},"href_6":{"type":"none","value":"","target":""},"pageConfig_1":{"pcColumn":3,"loopItem":".p_loopItem","pcRow":2,"moColumn":3,"datasourceid":"datasource1","elementid":1},"setting_4":{"fit":"contain","errorUrl":"","needThumb":"true","isLazy":"false"},"href_2":{"transport":[],"type":"field","value":"link","target":"_blank"},"prompt_6":"客服類(lèi)型","prompt_7":"","prompt_2":""}'/></div><div   class="usgw66giq8"   id="c_static_001-1684981076163">
<div   id="usgw66giq8"   class="e_container-54 s_layout">
    <div   id="usgw66giq8"   class="cbox-54-0 p_item"><div   id="usgw66giq8"   class="e_image-18 s_img">
                    <img src="https://omo-oss-image.thefastimg.com/portal-saas/pg2024112711573041667/cms/image/b2452da5-87c2-4dea-b061-34760fc6eb6f.png" alt="瑞龍" title="瑞龍" la="la" needthumb="true"/>
</div></div>
    <div   id="usgw66giq8"   class="cbox-54-1 p_item"><div   id="usgw66giq8"   class="e_richText-55 s_title clearfix">
    <p style="font-size:14px;line-height:24px"><span style="font-family:arial,helvetica,sans-serif;"><span style="font-size:16px;"><span style="color:#FFFFFF;">E-Mail：<a href="mailto:rldrill@rldrill.com" rel="nofollow">rldrill@rldrill.com</a></span></span></span></p>

</div></div>
    <div   id="usgw66giq8"   class="cbox-54-2 p_item"><div   id="usgw66giq8"   class="e_richText-56 s_title clearfix">
    <p style="font-size: 14px; line-height: 24px; text-align: right;"><span style="line-height:2;"><span style="font-size:18px;"><strong><span style="color:#FFFFFF;"><a href="/introduce_1/5.html">關(guān)于我們 </a>  <a href="/product/5/">產(chǎn)品中心</a>   <a href="/news/1/">新聞動(dòng)態(tài)</a>   <a href="/news/14/">企業(yè)風(fēng)采</a><br />
   <a >阿里巴巴國際站</a>   <a >English</a></span></strong></span></span></p>

</div></div>
</div><div   id="usgw66giq8"   class="e_container-57 s_layout">
    <div   id="usgw66giq8"   class="cbox-57-0 p_item"><div   id="usgw66giq8"   class="e_richText-58 s_title clearfix">
    <p style="font-size:14px;line-height:24px"><span style="color:#FFFFFF;"><span style="font-size:18px;"><strong>友情鏈接</strong></span></span></p>

</div><div   id="usgw66giq8"   class="e_container-59 s_layout">
    <div   id="usgw66giq8"   class="cbox-59-0 p_item"><div   id="usgw66giq8"   class="e_image-61 s_img">
                    <a href="/" target="_self">
                    <img src="https://omo-oss-image.thefastimg.com/portal-saas/pg2024112711573041667/cms/image/766e2888-0cfe-454e-8134-9913df9e1f91.jpg" alt="瑞龍" title="瑞龍" la="la" needthumb="true"/>
                    </a>
</div></div>
</div></div>
</div><div   id="usgw66giq8"   class="e_container-11 s_layout">
    <div   id="usgw66giq8"   class="cbox-11-0 p_item"><div   id="usgw66giq8"   class="e_richText-63 s_title clearfix">
    <p style="font-size: 14px; line-height: 24px; text-align: center;"><span style="color:#FFFFFF;">©2025 瑞龍鉆具 All rights reserved  <a >網(wǎng)站建設：中企動(dòng)力</a> <a >濟南</a>  </span></p>

</div><div   id="usgw66giq8"   class="e_container-60 s_layout">
    <div   id="usgw66giq8"   class="cbox-60-0 p_item"><div   id="usgw66giq8"   class="e_container-64 s_layout">
    <div   id="usgw66giq8"   class="cbox-64-0 p_item"><div   id="usgw66giq8"   class="e_provider-65 s_title" needjs="true" isShow="false">
    <a  target="_blank"></a>
</div> </div>
    <div   id="usgw66giq8"   class="cbox-64-1 p_item"><div   id="usgw66giq8"   class="e_html-66 s_list">

</div>
</div>

</footer>

久久久久小视频,久久女,久久美女福利视频,久久这里只有精品视频99,激情久久免费视频,99精品福利视频,91视频久久久