Good day Members-Discuss, We are a manufacturer of industrial steel pipes and tubing for water treatment, desalination, and utility pipeline systems. Materials we supply: Carbon steel: ASTM A106 Gr.B / ASTM A53 Gr.B / ASTM A333 Gr.6 Line pipe: API 5L Gr.B / X42 / X52 / X60 PSL1 & PSL2 Stainless steel: ASTM A312 TP304 / 304L / 316L / 321 / 347 Duplex stainless: ASTM A790 S31803 / S32205 Alloy steel: ASTM A335 P11 / P22 / P91 Heat exchanger tubes: ASTM A179 / A192 / A210 Products include seamless & welded pipes, U-tubes, fittings, and flanges, supplied according to ASTM / EN / DIN / GOST standards. If you have ongoing or upcoming projects, we can support with quotation and technical datasheets. Looking forward to your kind reply. Best regards, -- Dora Wan Project Manager EZ STEEL INDUSTRIAL CO., LTD Add: No.199 Xiangfu Road, Yuhua Industrial Zone, Changsha City, China Mobile/WhatsApp/WeChat: +86 18270222562 Email: sales5@ezsteelpipe.com