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Hebei Machinery Import na Export Co., Ltd. ghọọ nkwonkwo-ngwaahịa mba ọzọ ahia ụlọ ọrụ na October 2005. Dị ka ya ụzọ, Hebei Alaka nke China National Machinery Import & Export Corporation e hiwere na October 1974, nke bụ ihe mbụ mbupụ na mbubata ụlọ ọrụ n'ilekwasị anya na n'ibu na ọkụ ngwaahịa na Hebei ógbè ......
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...