1.The new preparation method of Al-Ti-C grain refiner was studied with aluminium ingot,potassium hexafluorotitanate,aluminium powder,hexachloroethane and carbon powder.
提出了利锭、氟酸钾、粉、六氯乙烷和碳粉制碳晶粒细化剂的新方法。
2.Copper plates are imported from Japan,pure silver ingots for plating from Switzerland,and argentic salt and other chemicals from Germany.
采日本进口的铜片,镀银的瑞士纯银条,西德的银监及化工原料等等。
3.Frame of the heating furnace like beer pasteurism sterilizer.Have an aluminium ingot preheat box.The box's length is near half a burdening span.