... check valve (BB.C) This type of air poppet valve,high precision , easy install,save space CUMSA air poppet valve,mould components ... installtion high precision and space saver.3 Using air valves to control the operation and the final ... products can leave the the mold instantly.4 Air poppet valves are made from stainless steels and ... for molds design and injection troubles. air poppet valve,CUMSA standard