高压立式止回阀 H42H-40C H42Y-40C 铸钢 碳钢升降式法兰止回阀

H42H 升降式法兰止回阀 H42H-100C 蒸汽 导热油高压铸钢止回阀

碳钢 铸钢升降式止回阀 H42H-64C H42Y-64C 防倒流法兰止回阀

CF8 CF8M CF3M不锈钢旋启式止回阀 H44W-16P H44W-16RL 蒸汽止回阀

高压不锈钢止回阀 H44W-64P H44W-64RL 防腐蚀不锈钢旋启式止回阀

高压不锈钢止回阀 H44W-40P H44W-40R H4W-40RL 旋启式蒸汽化工止回阀

H44W-10P H44W-10R H44W-10RL 不锈钢旋启式法兰止回阀 蒸汽止回阀

不锈钢高压法兰止回阀 H44W-100P H44Y-100P 单瓣旋启式止回阀

H41W-16P H41W-16R H41W-16RL 不锈钢升降式止回阀 逆止阀 单向阀

升降式不锈钢止回阀 H41W-10P H41W-10R H41W-10RL 卧式止回阀

卧式不锈钢止回阀 H41W-40P H41W-40R H41W-40RL 升降式化工止回阀

升降式不锈钢高压止回阀 H41W-64P H41W-64R H41W-64RL

升降式不锈钢高压止回阀 H41W-100P H41W-100R H41W-100RL

H44W-160P H41W-160P 旋启式 升降式不锈钢法兰止回阀 逆止阀 单向阀

H42W-16P H42W-16R H42W-16RL 升降式立式不锈钢止回阀 逆止阀

立式不锈钢止回阀 H42W-10P H42W-10R H42W-10RL 升降式止回阀

单瓣升降式不锈钢止回阀 H42W-64P H42W-64R H42W-64RL 法兰逆止阀

高压立式止回阀 H42W-40P H42W-40R H42W-40RL 不锈钢升降式止回阀

化工防腐不锈钢立式止回阀 H42W-100P H42W-100R H42W-100RL

软密封蝶形止回阀 H76X-10P H76X-10RL 不锈钢双瓣对夹式止回阀

H76H-10C H76X-10C 铸钢双瓣对夹式止回阀 蝶形对夹式止回阀