H41H-16C DN150泉城H41H16C150铸钢法兰升降式国标止回阀

Q41F-16C DN200泉城Q41F16C200铸钢法兰球阀

H44H-16C DN300泉城H44H16C300铸钢法兰旋启式国标止回阀

D343H-16C DN300泉城D343H16C300铸钢法兰硬密封偏心双向蝶阀

J41H-16C DN250泉城J41H16C250铸钢法兰国标截止阀

Z41H-64C泉城Z41H铸钢法兰国标闸阀