Kev sib txuas tubing yog ib hom cuab yeej siv rau kev khawb hauv cov roj teb, uas feem ntau yog siv rau kev sib txuas tubing. Kev sib txuas tubing feem ntau daws qhov teeb meem ntawm kev tawg ntawm kev qaug zog ntawm cov coupling uas twb muaj lawm vim muaj kev ntxhov siab.
Kev Nug
5-1203, Dahua Industrial Zone, No.2 Yunshui Road, Hi-tech development zone, Xi'an, 710065, Suav teb 
86-13609153141
