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ASTM A53 Gr. B ERW schedule 40 carbon steel pipe used for oil and gas pipeline
ASTM A53 Gr. B ERW schedule 40 carbon steel pipe used for oil and gas pipeline
The mechanical engineering workshops of our factory are all equipped with numerical central control ,Our factory has been constantly improving the platform construction, improving the quality of technical team, strengthening the invention of products category, formed complete R & D system and production quality management system, wined high reputation in the iron and steel industry.