... the express fee for the samples5, delivery time: after receiving 30%payment in advance and our sample is eligibled, as usual, the ... be used to clean drinking water pipeline system.2, Heat:In the provision of long-term continuous working pressure, pipe water ... 5MPa (50kg/cm2) above, toughness, good impact resistance.4, Pleasing in appearance:products inside and outside wall are smooth, water resistance ...