美标碳钢波纹管闸阀 ANSI c.s bellows seal gate valve WZ41H(DN15-40锻压)

美标不锈钢波纹管闸阀 ANSI s.s bellows seal gate valve WZ41H(DN15-40锻压)

法兰暗杆锁闭闸阀 flange NS block wedge gate valve PDZ45H-16

陶瓷气动双闸阀 Z644TC

气动旋转式摆动阀 BZ643TC-10C

SKZ43X-10C 三片式矿浆阀

螺纹闸阀 threaded gate valve Z15H-16

俄标法兰明杆楔式闸阀 GOST flange RS wedge gate valve Z40H-16