name: pipe material: carbon steel A234 WPB ANSI B16.9 standard: ASTM, ASME, GB, JIS,DIN, BS ISO9001/9002 Dear sir or madam,We are CANGZHOU SHENGXIONG BENDS CO.,LTD. ( Manufacturer) If you have any need for carbon steel pipe fitting: bend, elbow, tee, cap and reducer pls feel free to contact me. Yours,Cherry dang.