Yieh Corp. is a Taiwan registered company established in 1995, which is one member of Yieh Group, which owns several famous steel plants including YUSCO, one of the largest integrated stainless steel mill in the world. One of our main products is Seamless Stainless Steel Tube & Pipe 1. Capillary Seamless Stainless Steel Tubes (small diameter, high precision) 2. Superthin wall Seamless Stainless Steel Tubes (thin wall, high precision) 3. Standard Seamless Stainless Steel Pipes & Tubes 4. U-bent Seamless Stainless Steel Tube Executive Standard ASTM/ASME A213/SA213 A269/SA269 A312/SA312 DIN DIN2462 DIN17456 DIN17458 Steel Grade available ASTM/ASME TP304/TP304L/TP309S/TP310S/TP316/TP316L/ TP317L/TP321/TP321H/TP347H JIS SUS304TP SUS304HTP SUS304LTP SUS316TP SUS316LTP SUS310STP SUS317LTP SUS321TP SUS321HTP SUS347TP SUS347HTP DIN 1.4301 1.4304