We are the one of leading manufacturer and exporter in South Korea, specializing Automotive Aluminized & Stainless Pipe for Muffler. 1. manufacture Steel Tube Pipes sizes bellows. Size (mm) Outside Diameter: 22. 2, 25. 4, 31. 8, 35. 0, 38. 1, 42. 7, 45. 48. 50. 57. ...