blueboat 发表于 2016-5-11 11:07:36

API PR 14B 5th Design, Installation, Repair and Operation of Subsurface Sa

API PR 14B 5th  Design, Installation, Repair and Operation of Subsurface Safety Valve Systems

blueboat 发表于 2016-5-12 09:42:17

不是说上传附件有 金币奖励的吗，为什么我的没有？

admin 发表于 2016-5-12 10:48:20

谢谢您的分享,金币已奖励!

blueboat 发表于 2016-5-12 11:45:23

admin 发表于 2016-5-12 10:48 static/image/common/back.gif
谢谢您的分享,金币已奖励!

谢谢管理员，还有另外一个ASTM的标准也成功上传了，您也把金币给我吧，我等着下资料呢:P
页: [1]
查看完整版本: API PR 14B 5th Design, Installation, Repair and Operation of Subsurface Sa