... , the installation site without serious vibration and bumps, non-corrosive gas, should not be installed in explosive areas.4. Technical ParametersJLSZ ... >5. Outline and Installation Size (mm)JLSZ1-10,6,3 Three Phase Three Lines Dry-type Metering Box(Bucket type)JLSZ2-10,6 ... ,3 Three Phase Three Lines Dry-type Metering Box(Bucket type) JLSZ, JLSZWS Dry ...