产品描述:上海阀门—阻火器系列产品:进口阀门、德国阀门、日本阀门、波纹式阻火器ZGB-1。抽屉式阻火器ZGB-2/ZH。管道阻火器GYW。GZW。网型阻火器HGS07/GZ-1。砾石阻火器HGS07-203。天燃气阻火器FPB。氮气阻火器FPA。氧气阻火器FPV/FP。丝口阻火器ZGB。***阻火器HF-2-3。保温夹套阻火器JZH系列等产品.)