-
Kev sib txuas
Tubing coupling yog ib yam ntawm cov cuab yeej drilling hauv cov roj av, uas yog siv rau kev sib txuas ntawm tubing. Tubing coupling feem ntau daws qhov teeb meem ntawm qaug zog tawg ntawm cov uas twb muaj lawm coupling vim kev ntxhov siab concentration.
Room 703 Building B, Greenland center, Hi-tech development Zone Xi'an, Suav teb
86-13609153141
