BeiSai brand products(Cast Iron Pipes,Fittings,Manhole Covers and Frames and other Couplings/Joints/connectors)were applied in the contruction site，Fully service and tracking in all process,the qualit
BeiSai brand products(Cast Iron Pipes,Fittings,Manhole Covers and Frames and other Couplings/Joints/connectors)were applied in the contruction site of South African，Fully service and tracking in all p
