产品用途：
难熔金属在高温环境下仍然保持极低的饱和蒸气压，因此作为热屏和加热带，不会给高温炉带来挥发性杂质污染。
Application:
Refractory metals still maintain a very low saturated vapor pressure in the high-temperature environment. Therefore, as a heat shield and heating belt, they will not cause volatile impurity pollution to the high-temperature furnace.
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.
