... , Riveting, Welding ,Forging ,have forging,costing and heating treatment workshops AnShan Ying Yat Trade Co., Ltd and AnShan HongMing ... manufacturing together with trading. Our company has its own right to import and export.Meantime, we have very strong technical ... line and kinds of smelting electric furnace in our heat treatment branch factory. In this case, quenching, annealing, tempering, ...