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HuiGoo Optic Co.,Limited is a leading worldwide professional manufacturer and provid...
The characteristics of gas phase liquid nitrogen tanks are: 1. Designed for gas-phas...
LSAW(longitudinal submerged arc welded) Material: As per API 5L, the steel grade cov...
our company is mainly engaged in exporting black metal and products , including steel...
Dear sir our company is mainly engaged in exporting black metal and products , in...
Standard: GB3091-2015, BS1387-1985, ASTM A500 GRADE A,B,C, ASTM A795, ISO65, ASTM A53...