The liner is made of aluminum alloy 6061, and is manufactured through the procedures of punching, drawing, heat treatment, numerical control spinning, and polishingsurface. It holds the following merits of even wall thickness, little difference specificationWater Capacity (L)WeightKgOutside diamter(mm)LengthmmFQC60-0.5-300.50.660311FQC108-1.5-201.50.9108270FQC113-1.6-201.61113265FQC113-2.0-2021.4113320FQC101-2.0-3021.6101405FQC115-2.0-3021.6115328FQC120-2.2-202.21.5128320FQC128-2.4-202.41.6128306FQC128-2.5-202.51.7128315FQC132-2.7-202.71.7132315FQC115-3.0-3032115454FQC136-3.0-3032.2136352FQC113-3.2-203.22.3113490FQC140-4,7-304.73.3140487FQC140-4,8-304.83.3140500FQC157-6.8-306.84.1157533FQC174-9.0-3095.1174573