H72H-16P-DN15 304材质对夹式升降式止回阀
H72H-16C-DN20对夹式升降式止回阀
H72H-16P-DN20 301材质对夹式升降式止回阀
H72H-16P-DN20 304材质对夹式升降式止回阀
H72H-16C-DN25 对夹式升降式止回阀
H72H-16P-DN25 301材质对夹式升降式止回阀
H72H-16P-DN25 304材质对夹式升降式止回阀
H72H-16C-DN32 对夹式升降式止回阀
H72H-16P-DN32 301材质对夹式升降式止回阀
H72H-16P-DN32 304材质对夹式升降式止回阀
H72H-16C-DN40 对夹式升降式止回阀
H72H-16P-DN40 301材质对夹式升降式止回阀
H72H-16P-DN40 304材质对夹式升降式止回