1. Technical specifications: Dissolved Acetylene gas cylinders GB11638 standard Water capacity:8L, 10L, 25L, 35L, 40L and 60L Test pressure:5.2Mpa Working pressure:1.56Mpa Material:Hp295 and 20# steel Mass Porosity(%):90-92 Mass Compressive Strength(Mpa):≥1.8 Axial Gap(mm):≤2.5 and ≤0.3% of Mass Length 2. Types of Acetylene cylinders Water capacity (L) Outside Dia (mm) Wall Thickness (mm) Length (mm) Acetone Weight (Kg) Acetylene Weight (Kg) Total Weight (Kg) Standard 40 258 4 1045 13.0 6.0 36 GB11638 35 243 4 1017 11.5 5.5 34 25 243 4 790 8.5 4.2 28 10 159 2.1 826 3.3 1.7 20.7 8 159 2.1 708 2.7 1.4 15.6