JIS G 3472 STAM系列
自動車(汽車)構造用電氣抵抗溶接碳素鋼鋼管
Electric resistance welded carbon steel tubes for automobile
種類(Grade)
種類記號(Designation)
Grade G
STAM290GA
STAM290GB
STAM340G
STAM390G
STAM440G
STAM470G
STAM500G
