... PVC pipe fittings: Gaskets according with EPDM.Shanxi Tianzhu Casting Co., Ltd. is a privately-owned enterprise ,approved and registered ... dept, logistic dept, export dept, quality controlling dept, casting workshop, machining workshop, pressure testing workshop, coating workshop, packing ... etc. It is engaged in sales of Ductile Iron casting, machining, welding etc. Throughout many years growth-up, ...