Line pipe: API 5L Gr.B; plain end Oil seamless steel pipe: API 5CT Gr. J55 or N801 size from 2-3/ 8" to 5-9/ 16"
Selling seamless steel pipe. Standards as follows: ASTM A53, A106; API 5L, API 5CT, ASTM A335; and GB5310-1995 for high pressure boilers; GB3087-1999 for low/ medium pressure boilers; GB/ T8163-1999....
Dear Sir: Thank you for your viewing. WEIFANG EAST STEEL PIPE CO., LTD. is a professional steel pipe manufacturer, we can produce round, square, rectangle steel pipe, according to standards of....