... 08AL, M6, SPHC, 65Mn, T8-T10A, 20MnSi hot dipped galvanized coilSGCC SPCD SPGC SPCE STMA653 ASTM A792 Q195 DX51DThickness: ... and welding. Good quality strip steel and advanced equipment are used to produce high-frequency square tube of ... steel, angle steel, I-beam steel, H-beam steel, flat steel, steel plate, galvanized Steel Pipe, seamless pipe, welded pipes, cold rolled steel coil, hot rolled steel ...