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Established in 2008, Xi'An Wansheng Material Resources Co.,Ltd locats in the historical and cultural city, Xi'an. The co***ny has engaged in both manufacturing and marketing for many years and we also have our own manufacturing factory. The factory locats in Taixing City, Jiangsu Province, which was founded in 1996. We mainly produce the type of QF5 and QY4's Pressure Regulating Valve, Direction Valve, Air Cylinder, Gas Control Box and Hole Valve on the mud pump, which can be used on the F320 and ZJ20B1-70L...
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