Cold drawn seamless steel tube, grade 20#, in accordance with standard 8163, used for conveying fluids. Widely applied in fire protection, HVAC, air conditioning, and construction projects. Vast range of sizes and diameters to meet customer's project requirements. Available in diameters from 16 to 630mm in stock. Our warehouses are distributed in South China, with a total of 14 distribution points in Guangdong, Hainan, and Guangxi.