5865| 4
|
无磁钻铤,API增补3要求要进行压应力处理? |
| ||
点评
国内就是这现状,我们公司NS-1认证还没通过
| ||
点评
逍兄这么晚还没睡啊
| ||
小黑屋|手机版|Archiver|机械必威体育网址 ( 京ICP备10217105号-1,京ICP证050210号,浙公网安备33038202004372号 )
GMT+8, 2024-11-6 13:50 , Processed in 0.050813 second(s), 16 queries , Gzip On.
Powered by Discuz! X3.4 Licensed
© 2001-2017 Comsenz Inc.