... patent equal-rigid rolling stands. high-power edge milling machine,right angle coordinate milling saw,solid-high frequency,on ... . The finishing line equipped with advanced chamfering machine,traveling saw,milling cut-off unit, automatic servo-printing system,oiled,weld ... is fully computer-controlled on-line changing roller and off-line disassembling roller. PRODUCTION CAPACITYLine pipe,Casing pipe and ...