... Reducer , Reducer , Union , Nut , Male , Liner , Gasket , Ferrule , Hose Coupling , Blank , Clamp , Manholes , Pump , Butterfly Valve , Check Valve , iaphragm Valve , Ball ... ,B505 Binhai Branch ,Econ.& Tech. Dev . Zone, Wenzhou-China double-pin clamp (13MHHM-DP)