产品用途：
电流流经钨杆并产生高温，将坩埚内的原料熔化。
Application:
The current flows through the tungsten rod and generates a high temperature to melt the raw materials in the crucible.
按图纸生产，如有特殊要求，双方具体商定。
The products shall be manufactured according to the drawings.
Special requirements will be agreed upon by the supplier and buyer.
