Engineering company, manufacturer of heat exchange equipment made of titanium, nickel, stainless steel, special metal, spherical powder additive technologies GB 3090 tube, ASTM A632 tube, ASTM A270 tube, ASTM A 269 tube, ASTM A240 tube, JIS G4304 tube, G4305 tube, GB/T 4237 tube, GB tube/T 8165, BS 1449 Tube, DIN17460 Tube, DIN 17441 Tube, GB/T 3086-2008 Tube, SS-CPG36-72 Tube, ANSI B36.10 Tube, ASTMA213 Tube, ASTMA312 Tube, ASTMA269 Tube, ASTM A554 Tube, JIS G3463 Tube, JIS3446 Tube, JIS3448 Tube, JIS3459 Tube, DIN 17458 tube, GB 3090 tube, ASTM A632 Tube, 79846-87604 Tube, GB/T18705-2002 Tube, GB3090-2000 Tube, ASTM A632-04 Tube, ASTM A269-2002 Tube, JIS G4305 Tube, GB/T 12770-2002 Tube, GB/T12771-2002 Tube