产品用途：
在蓝宝石长晶炉中，钨支柱和底座给钨坩埚提供稳定的支撑。
Application:
In sapphire crystal growth furnace, the tungsten column & bottom provide stable support for tungsten crucibles.
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.
