valve body
invest-casting then machine , plate . used in petro or oil company
material : steel
tolerance :+-0.005 inch
plate :zinc or paintinve
the valve is used petro oil indusrial comapny
lose wax to cast . precision casting
valve body
invest-casting then machine , plate . used in petro or oil company
material : steel
tolerance :+-0.005 inch
plate :zinc or paintinve
the valve is used petro oil indusrial comapny
lose wax to cast . precision casting
valve body