HH44X-10/16微阻缓闭止回阀

H42X-16/25水下底阀

H61H-800LB锻钢焊接止回阀

H41Y/H44Y-16C法兰锻钢止回阀

H44X-16Q橡胶瓣止回阀

HC41X-16消声止回阀

HC42X（DRVZ）-16*式止回阀

H44H-150LB美标旋启式止回阀

H71H-16/25C对夹蝶式止回阀

H71W-16/25P不锈钢对夹式止回阀

H42H-25C立式法兰止回阀

H41H-16/25C升降式止回阀