... suitable for measuring liquids and gases, all-metal structure. LZ Type Metallic Tube Rotameter, which is based on the variable ... of the all-metal structure.There are six types of LZ Type Metallic Tube Rotadameter, which include the indication type, ... , chemical, power-generating, medicine-making, food, water treatment, etc. LZ characteristics:1) Strong all-metall structure design type rotameter.2 ...