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Hebei Machinery Import and Export Co., Ltd. was transformed into joint-stock foreign trade company in October 2005. As its predecessor, Hebei Branch of China National Machinery Import &Export Corporation was founded in October 1974, which was the earliest export and import company focusing on mechanical and electrical products in Hebei province……
tube and pipes
A valve is a device or natural object that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but are usually discussed as a separate category. In an...
Casting Materials of Valves
Casting Materials of Valves ASTM Casting Materials Material ASTM Casting SPEC Service Carbon Steel ASTM A216 Grade WCB Non-corrosive applications including water, oil and gases at temperatures between -20°F (-30°C) and +800°F (+425°C) Low Temp Carbon Steel ASTM A352 Grade LCB Low temperatu...