... OEM factory 4.CE,EN331,SGS,ISO9002:2008 certification 1.Name: brass refrigeration copper fittings2.Material:Brass 3. ... Size:16-1/2",20-1/2" 4.Certificate:ISO9001 by DQS of ... 1 1.1 1.416 16,0 16,31,5 1,5 1,816 16,0 16,31,8 1,8 2,120 20,0 20,31,9 1,9 ... 3.5 4.032 32,0 32,32,9 2,9 3,332 32,0 32.34,4 4 ... 16,32 1,9 2,3518 18,0 18,32 1,9 2,3520 20,0 20,32 1,9 2,3520 ...