... ,ISO14001,OHSAS18001 3.Lifetime:50 years HDPE female thread tee 1.As a company listed in Singapore , ATON Innovation Group specialized ... : SpecificationOutside diameter(mm):20*1/2",25*1/2",25*3/4",32*3/4",32*1",40*1 ",50*1/2",50*3/4 ... ",63*1/2",63*3/4",63*1"Use:Water supplyColorBlackStandardISO/DNLifetimeOver 50 ...