hat
◎ Dansite nan rijid an poliyiretàn se 60kg / m³-80kg / m3, konplètman ranpli nan espas sa a nan tiyo Inner plastik ak ekstèn kouch HDPE pwoteksyon, ak ase fòs lyezon, fè sa a kouch twa: tiyo Inner tib, Polyuretane kouch kouch, Eksteryè pwoteksyon HDPE kouch entegral, pwopriyete li pi bon pase tib la PO nòmal.
eng
◎ The density of rigid polyurethane is 60kg/m³-80kg/m³, fully fill in the gap of Inner plastics pipe and outer HDPE protection layer, with sufficient bonding strength, to make this three layers: Inner Plastics pipe, Polyurethane foaming Layer, Outer protection HDPE layer integral, its property much better than the normal PO pipe.