... , female elbow, coupling , straight-through , Pipes.Application: 1.For pure drink water system2.Cold water and hot water ... .When using, please take notice of the factor C :1.If used in normal palces for long time < ... 700, could choose C=1.25 .If used long time for important places ... for long time >=70, cold choose C=1.52. Code water conditon : <=40, could choose ...