... ,freezer etc;3)outer diameter:4.00mm,4.76mm,6.00mm,6.35mm,8.00mm;4)wall thickness:0.50mm,0.60mm ... ,0.65mm,0.70mm;5)packing as customer's request;6 ... to customers' requirements5. Size: 4.7*0.7mm, 6.35*0.7mm,6. Type: Zinc coating outer side, Cu coating outer ... , evaporator etc.Standard ASTM A254OD:4mm,4.76mm 6mm 6.35mm.7.94mm,8mm,12.76WT:0.4-1.0MM condensing ...