鉆桿磨損問(wèn)題
ISO9001-FDIS-11961-E
ASTM A388
國(guó)外螺紋的識(shí)別和轉(zhuǎn)化
優(yōu)化固井資料
A 3881A 388M一03 SUP...
Welding of Pipeline...
鉆柱與套管的摩擦磨損問(wèn)題研究