... . ISO9001,ISO14001,OHSAS18001 3.Lifetime:50 years HDPE thread female 45 degree elbow 1.As a company listed in Singapore , ATON Innovation ... pipes and fittings, PVC-U windows and doors, telecommunication ducts, PE fuel gas, etc. 2.Detail: SpecificationOutside diameter(mm):20*1/2 ... % more flow volume than cast iron pipes of the same diameter;No rust, so keep external wall un-contaminated by the ...