Purchase ASTM B75 Seamless Copper Tube in Custom Sizes/Shapes from a leading copper tube manufacturers in India for use in plumbing, HVAC, refrigeration, and other applications. is a respectable and knowledgeable producer of copper tubes in India that provides both conventional and custom diameters and forms. They are available in Grades L, K, and M. We offer soft copper tubing that is suitable for air conditioning and is trimmed to size.