Deep trap with four door

En877 Cast Iron Fitting Liquid epoxy resin coating fittings   Internal and external painting: Epoxy resin powder coating fittings, with an average dry thickness of 100-400 microns The pipe fittings produced by our company have smooth surface,high density,no white,High strength, light weight,environmental protecting, strength corrosion-resistant coating,reasonable design in structure which are used in the drain,waste, vent and rainwater system of  high buildings