bronze check valve 1.body material:B62, B61,B148, 2. ... range: 1/2" to 16" bronze check valve features:Product Name: B61 check ValveTRIM:B62, B61,B148,monel 400 or ... valve in petroleum, natural gas, coal and ore mining, processing and pipe system, In chemical products, pharmaceutical and food, ... and gas supply system,is a production and construction, check valve closed in all kinds of pipeline system is ...