插板阀手动插板阀气动电动插板阀闸板阀排污水闸阀圆口插板板厂家 'Gate valve Manual gate valve Pneumatic electric gate valve Gate valve Blowdown gate valve Round port gate plate manufacturer'

Product No.: flapper valve Brand: other models: ZF-800 flapper valve Standard: national standard specification: flapper valve can be equipped with accessories: valve body sealing method: hard sealing type Order No.: flapper valve flow direction: one-way temperature environment: high-temperature valve function: blowdown pressure environment: atmospheric pressure driving method: sprocket applicable medium: other