... rail.Foundation,top rail,slider block are made in steel wileded structure.The plate's material is ... lockoutThe material of upright column is 45# forged steel,and has process in drawing temper,the quenching ... the tank. (2)Fuel tank for the steel plate welded structure, by shot peening and rust ... temperature display and also air filter.Tanker is steel welded,tanker side has cleaning window,bottom equipped ...