casing sub

常見例句

雙語例句

• According to actual needs. there are circulating sub with casing thread and circulating sub with union thread.
  根據(jù)需要可分為套管螺紋循環(huán)接頭和油壬螺紋循環(huán)接頭（全規(guī)格）。
返回 casing sub