PZ973H-16C碳钢电动对夹刀闸阀

硬密封电动法兰刀闸阀

刀型闸阀　PZ73H-25C DN250

煤气电动刀闸阀 DMZ973H-10C

DMZ73X-10C-DN250DMZ73X-10C刀型煤气闸阀

DMZ973H-10C刀型煤气闸阀、污水刀型闸阀

PZ973H-16C对夹式电动刀型闸阀

PZ943H-16C法兰式电动刀闸阀

不锈钢（304）阀体电动刀闸阀　PZ973H-16P

电动刀闸阀PZ973H-10C

PZ973H电动刀闸阀

PZ973H-10C/PZ973H-16泥浆粘稠介质电动刀闸阀