Z43WF-16C Z43H-16C 油田油库天然气 航空煤油平板闸阀 油井注水闸阀

Z43Y-200C/250C/260C 硬密封油井注水平板闸阀 抗硫平板闸阀 KZ43Y-260C

H74F46-10C H74F46-16C 薄型单瓣旋启式衬氟止回阀

立式衬氟止回阀 H42F46-10C H42F46-16C H42F46-10P H42F46-16P

Z41F46-10C Z41F46-16C Z41F46-10P Z41F46-16P 铸钢 不锈钢衬四氟闸阀

旋启式衬氟止回阀 H44F46-10C H44F46-16C H44F46-10P H44F46-16P