JIS G3472 ERW pipes for automobile structure, mainly used in automobile skeleton, chassis, axle, body, mechanical structure and interior decoration.
JIS G3472 : 290 GA STAM, STAM 290 GB, STAM340G, STAM390G, STAM440G, STAM440H, STAM470Gb), STAM470Hb), STAM500Hb), STAM540Hb
Resistance welding: does not need welding wire, welding rod and other filler metal, as well as oxygen, acetylene, hydrogen and other welding materials, welding cost is low.
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