山西环界石油钻具制造有限公司
Exhibit Profile：
Our company mainly produces drill pipes, drill collars, spiral drill collars, non-magnetic drill collars, heavy weight drill pipes, kellys, tool joints, casing and tubing.
Exhibits show：
Our company mainly produces drill pipes, drill collars, spiral drill collars, non-magnetic drill collars, heavy weight drill pipes, kellys, tool joints, casing and tubing.
Exhibits show：
Website：http://www.huanjie.com.cn