... ;GB,WCB Ball valve is the class-1 supplier of CNOOC,CNPC,CAO - Type:Forged steel floating ball ... valve - Processing: Long delivery pipes of natural gas- Method: Handle operation ,Worm gear operation, ... 2000, CE ,API,LRQA,TSSuitable medium General type :Water,Oil and natural gasAntisulphur type :Natural gas containing H2S ... 900" wcb ball valve for the pipeline of water mediums