brass refrigeration copper fittings 1.MOQ:1000pcs 2.Size"1/2"-2" 3.OEM factory 4.CE,EN331,SGS,ISO9002:2008 ... copper fittings2.Material:Brass 3.Size:16-1/2",20-1/2" 4.Certificate:ISO9001 by DQS of Germany 5 ... support sleeve corresponding to the dimensions of the pipe. 2. Multilayer pipes manufactured according to UNE-EN-ISO 21003 ... 20,32,25 2,05 2,6525 25,0 25,32,5 2,3 2,926 26,0 26,33 2,8 3,432 ...