PZ973电动刀形闸阀

PZ543伞齿轮对夹式刀型闸阀

PZ673气动穿透式刀闸阀

PZ73H手动刀型闸阀

BZ41H保温闸阀

弹性软密封闸阀

电动刀型闸阀PZ973H

铬钼钢闸阀 Z40H(Y)

齿轮传动楔式闸阀 Z441H(Y) Z541H(Y)

锻钢闸阀

PZ43不锈钢手动对夹式刀形闸阀

美标波纹管闸阀