Liaocheng Development Zone Jiang Yang Material Co., Ltd. is a large seamless steel pipe manufacturing enterprise. Our firm was founded in 2005. As a professional manufacturer, our firm covers an area of 35,000 square meters with an 8,000-square-meter factory building. We have more than 200 workers, 23 experienced salesmen, 6 senior engineers, 16 middle-level administrators and technicians. Now we introduce our product as follows: (1).Product: Seamless Carbon Steel Pipes (2). Brand: Jiangyang (3).Specification: OD: 21.3mm - 355.6mm (1/2'' - 14'') (4) Standard: ASTM A106 GR B / ASTM A53 GR B SAE1020 SAE1045 JIS G4051 S20C JIS G4051 S45C JIS G3454 STPG370 JIS 3454 STPG42 DIN ST 45-8 DIN ST 52 (5) Tolerate: OD: +1% / -1% Thickness: +12.5% / -10% Length: 13mm As for sale, we have our branch offices in Tianjin and Nanjing to sell our featured products around China.