Changzhou Chengxin Metal Products Co., Ltd
Seamless carbon steel pipe
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ASTM A519 seamless carbon steel pipe -
DIN 2448 seamless carbon steel pipe -
DIN 1629 ST52 seamless carbon steel pipe -
DIN 1629 seamless carbon steel pipe -
DIN 1629 ST37 seamless carbon steel pipe -
ASTM A53 grade A seamless carbon steel pipe -
ASTM A53 grade B seamless carbon steel pipe -
DIN 1629 ST44 seamless carbon steel pipe -
EN 10297-1 E470 seamless carbon steel pipe -
ASTM A106 seamless carbon steel pipe