Discover the high-quality ASTM A269 TP304 TP316 TP321 polished stainless steel tubing, perfect for the auto industry. With a supply capacity of 1000 tons/month, these small diameter tubes (0.2-2.5mm WT) are available in seamless or welded options, meeting ASTM A554 and A312 standards. Ideal for automotive applications like engine and transmission systems.