Most are manually operated valves ( by hand ) or mechanically controlled ( pressure / vacuum or float level ) 大部分为手动阀门或机械控制阀(压力/真空或浮子度) 。
Company mainly manufactures solenoid pulse valve ( right angle , in line , ex - proof series ) cylinder , air source , treatment unit , solenoid valve , mechanical control valve 公司主要生产电磁脉冲阀(直角式、淹没式、防爆等系列) 、气缸、气源处理件、电磁阀、机械控制阀等系列气动元件。