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[2016-01-11]
在设计计算全焊接固定球球阀时,首先要确定阀体的通道直径,以便作为其他部位计算的基础。...
 
[2016-01-11]
固定球球阀为双阀座阀门、对于双阀座阀门分:...
 
[2014-07-10]
Jacketed ball valve being used to maintain fluid temperature during an operation to keep fluids at a lower viscosity to operate the valve smooth & easy without any hard operation....