1. Alloy no.: C12200, Temper: soft drawn or light soft drawn 2. Standard complied: ASTM B-280, EN-12735, JISH-3300, GBT-17791 lwc copper tube:Level Wound Coiled copper tube is our most important product, which is widely used for HVACR field Level Wound Coil1) Alloy no.: C12200, Temper: soft drawn or light soft drawn2) Standard complied: ASTM B-280, EN-12735, JISH-3300, GBT-17791, ISO9001, ...