ERA Piping Systems ,PVC Pipe Fitting ,STRAIGHT TEE, UST01, PN10(ISO1452),Socket, CE System: The dimensions of our fittings comply with ISO1452 standards, while many of our products meet other standards as well, including British, ASTM and Thai.n1. This kind of pipe has very good compressive strength, and the resistance of the pipe fluid is very small, because the inner wall of the pipe is very smooth, and the inside of the pipe is not easily blocked during use. Compared with concrete pipes, the water transport capacity can be increased by 40%.n2. The water density of this kind of pipe is also very good. Whether it is connected by bonding or using a rubber ring, it has very good water tightness.