Cov Yeeb Nkab Hlau Carbon

Cov yeeb nkab carbon steel yog cov khoom siv ruaj khov ua los ntawm cov hlau carbon.
CHS Cov Yeeb Nkab Hlau Txheem: ASTM A53, API 5L, ASTM A252, ASTM A795, ISO65, DIN2440, BS1387. BS1139, EN10255, EN39, JIS3444, GB/T 3091 & GB/T13793
RHS SHS Cov Yeeb Nkab Hlau Txheem: ASTM A500, EN10219, EN10210, JIS3466, GB/T 6728
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