Detailed Product Description For manufacturing of bottle cylinders, CNG cylinders for vehicle, accumulator shell and fire fighting. Sizes: Outside diameter:: 60mm- 406mm Wall Thickness: 2.5mm- 30mm Special supply tubes size for cold drawn tube: 83x 2.5mm 100x2.5mm 140x 2.7mm 171x3.6mm 177.8x3.6 180x3.8mm For hot finish tube : 232x 5.8mm 267x6.8mm 273x7mm 325x8.5mm 356x7.5mm 406x 8.5mm