国产人成精品香港三级在,国产欧美日韩精品第二区,国产欧美成人一区二区三区
<menuitem id="habm2"></menuitem>
<center id="habm2"><progress id="habm2"></progress></center>
<p id="habm2"></p>
<style id="habm2"><delect id="habm2"><pre id="habm2"></pre></delect></style>
Main page
|
Email
|
contact
Русский
·中文
·English
Main page
Products
certificates
About us
Contact
Products
New Products
Roadheaders
Mining equipment
Rock Tunneling
Shielding equipment
Drilling Rig for Coal Mine
Secondary Transport System
Drilling Rig
Truck-mounted Crane
Special Purpose Vehicle
Electric Parts
Hydraulic element
Typical Cases
Product series
New Products
Roadheaders
Mining equipment
Rock Tunneling
Shielding equipment
Drilling Rig for Coal Mine
Secondary Transport System
Drilling Rig
Truck-mounted Crane
Special Purpose Vehicle
Electric Parts
Hydraulic element
Typical Cases
Products
Main page
>
Products
>
Drilling Rig
Usage
250×250 Kelly bar is the driving drilling pipe special for big holes drilling. can used for the circulation and reverse circulation drilling, also can achieve gas inlet and deslagging, this kelly bar can withstand big torque and deslagging is good.
Specification
Copyright：Shijiazhuang Coal Mining Machinery Co., Ltd. ICP:09037270
Design by：
http://www.sjznet.net
<span id="13evs"><nav id="13evs"></nav></span>
<input id="13evs"></input>
<input id="13evs"></input>
<i id="13evs"><del id="13evs"></del></i>
<bdo id="13evs"><del id="13evs"></del></bdo>
主站蜘蛛池模板：
阿拉善盟
|
敖汉旗
|
唐河县
|
历史
|
洛隆县
|
莆田市
|
石狮市
|
夏河县
|
桃园县
|
清河县
|
互助
|
冕宁县
|
桐乡市
|
道孚县
|
闽清县
|
岳普湖县
|
简阳市
|
丰台区
|
济阳县
|
鄂伦春自治旗
|
霍城县
|
旬邑县
|
扎囊县
|
三穗县
|
洛浦县
|
台东县
|
晋州市
|
林周县
|
阿拉善右旗
|
黔西县
|
文山县
|
台安县
|
雅安市
|
威信县
|
临夏市
|
扬中市
|
舒城县
|
永泰县
|
奎屯市
|
搜索
|
牙克石市
|
