Fluorine lined Ball valve Design standard: GB12237-89 HG/T3704-2003Structure length: HG/T3704-2003 GB/T12221-2005Flange standard: JB/T79.1 GB/T79113.1 ANSIB16.5Nominal pressure: 0.6 1.0 1.6 2.5MPa 150LbCheck test: JB/T9092-99, electric spark test; GB/T13927,Vapour pressure test AP1598Driving mode: M......