Shanghai Wechem Chemical Co., Ltd
Contact:tongy Guo
Tel: 86-21-51987501
Fax: 86-21-61927501
Mail: info@wechem.cn
Main product: gases, SF6 , NF3 , WF6 , CO , NO , CH4 , N2O , HBr, HCL , H2S , BCL3 , BF3 , SIF4 , SIH4
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