First, I will introduce ***** am Serena Chan from ShangHai , China. Our company , named Nantong Hengte Tube Co., Ltd , is a sino-American joint-investment steel cooperation established in 1993 by Nantong Suzhong Steel Tube Co., Ltd and American Express Cross Interstate Ltd. Our products are widely used in: 1) Water supply and drainage project, transport gas, natural gas, heating, oil, solid material, protection of underground wire and cable, etc; 2) Housing fence, furniture parts, supermarket shelves, transmission shaft at airport, supermarket as well as factories, highway guardrails, and scffolding used in building construction; 3) For the manufacture of structural and mechanical parts, such as oil drill pipe, auto rotation axis, bycycle rod, air conditioners, household applliance, etc. Regular production standard: ASTM, JIS, BS, DIN, EN, GB. Welded Pipe: OD1/2"~12" WT 0.6mm~10mm Galvanized Tube: OD1/2"~8" WT0.6mm~10mm Seamless Pipe: OD1/2"~10" WT1mm~10mm Steel Plastic Composite Tube: OD1"~4" Square and Rectangular Tubeï¼?10mm*10mm~400mm*400mm Greenhouse & Pipe fittings& structure pipe, scaffolding, irregular pipeï¼?etc:according to customersâ?? request