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Donjoy,won first high purity safety valve "safety valve special manufacturing license"enterprises in domestic.

Donjoy,pass"safety valve special manufacturing license ", is currently first through the "high clean special relief valve manufacturing license" in domestic(safety accessories and safety protection device). Donjoy's pressure safety valve technology, has been through America 3-A health standards 64-00 certification. Specific products: safety valve, constant pressure valve, counterbalance valve, reducing valve.