Congratulations to TENGYUAN GROUP's 14 sets of imported Battenfeld-Cincinnati pipe production lines from Germany were put into operation in workshop No.6, 6 sets of steel wire mesh skeleton pipe production lines and 4 sets of DWC pipe production lines and 4 sets of OD315mm-OD1200mm multi-angle welding machines were put into operation in the south branch factory on May.6th, 2019!