Calgaz cylinders 2al Calgaz บริษัท แก๊สตรอน (ประเทศไทย) จำกัด Calgaz has a range of three types of 2AL aluminium cylinders designed to meet your needs. The 2ALE and 2ALU are both approved for global use and vary only slightly in terms of height, appearance and weight. The 2ALR is our refillable cylinder version which can only be supplied in the USA. calibration & installation gas detector and systemcalibration gas detectorcylinder calibration gas รายละเอียด ติดต่อ