Suzhou Douson Pressure Control Co., Ltd. is a valve and oil well equipment manufacturer. The company is located in Suzhou City, China. It covers total area of 70, 000 square meters, including 50, 000 square meters workshop. Douson possesses the manufacturing facilities of forging, welding, machining, heat treatment, assembly, pressure testing and painting. The total staff in Douson is 420, including about 60 engineer and technical personnel. The main products of Douson are Gate, Globe, Check, Ball, high temperature & pressure valves and oil well Equipment used in oil, chemical, petrochemical, metallurgy and power station industries. Douson has adopted API, ANSI, ASME, MSS, BS, DIN and GB(Chinese national standards) standards in design, the size range from 1/2 �to 36�, and pressure rate from ANSI Class 150 to 15, 000 Lb. Material includes WCB, WC6, WC9, LCB, LCC, CF8(304), CF8M(316), CF3(304L), CF3M(316L), CN7M(Alloy20), A105, 1020, 1040, 410, 4130, 4140, 17-4PH, Inconel Alloy, Ti Alloy, and Monel etc.