国产精品女人呻吟在线观看,欧美内射深喉中文字幕,日韩A∨精品日韩在线观看,亚洲免费观看视频

Hello, Welcome hengtong! Main products: domestic polycrystalline diamond wire drawing die, imports of polycrystalline diamond drawing die   
中文English
Tianchang hengtong metal products co., LTD.
Freephone0550-7761798

Support

  • Tianchang hengtong metal products co., LTD.
  • xiliren
  • phone:15155048886
  • phone:0550-7761798
  • fax:0550-7762738
  • mail:254025023@qq.com
  • address:YangCun industrial park,Tianchang,Anhui
您所在的位置:sy >Support
2016-03-18Die casting die drawing die should be how to deal with

A mold. After heat treatment, the surface of soft, will affect the mold wear resistance, reduce the ……[know more]

2016-03-18According to the difference between the well and the hard alloy die

Polycrystalline module and hard alloy, the tensile strength of polycrystalline diamond is only 70% o……[know more]

2016-03-18How to exert the maximum potential of mold

Hard alloy die in use after a period of time, the internal parts will gradually wear that is damaged……[know more]

2016-03-18Polycrystalline module should be noticed in the drawing process

Polycrystalline module in the wire drawing process should pay attention to several points: a. a full……[know more]

2016-03-18In the processing of hard alloy die deformation how to do

Hard alloy die size, hard alloy die geometry and size should be consistent with the provisions of th……[know more]

2016-03-18Reasons for rapid damage of wire drawing dies

1.1 drawing die of its own processing quality factors lead to rapid tooling wear (1) wire drawing di……[know more]

6record/1page 1
return to the top
?
  • jishu:15155048886
  • phone:0550-7761798
  • fax:0550-7762738
  • mail:254025023@qq.com
  • address:YangCun industrial park,Tianchang,Anhui
popular keywords: /WEB%INF/web.xml?

ScanningVisitMobile version

Tianchang hengtong metal products co., LTD.  Copyright ?  皖I(lǐng)CP備16005291號-1 正版建站推廣:千秋在線 
国产在线精品国偷产拍| 精品国产a∨无码一区二区三区| 男女爽爽午夜18禁影院| 成年无码AV片在线狼人| 在线看免费无码的av天堂| 大肉大捧一进一出视频|