specieal matreial for blocking water
temporary blocking for the casting of concrete
AC & DC wet-type electromagnet for valve
AC electromagnet for valve
AC wet type electromagnet for valve
control valve for steam injection
cylindrical valve for hydraulic turbine
powder metallurgy material for valve seat insert
Valve for Powered Support
valve gear
阀齿轮
气门机构
配气机构
阀动装置
阀动机构
气门机件
球阀
Case-Hardened Steel for Gear
gear for fine adjustment of draft
method for turning body over
Polyester Fibre for for spinning