Our company mainly engaged in LCD auxiliary materials and accessories.
本公司主要经营LCD辅助材料及配件。
In addition, the auxiliary materials for fractionation is decided for different products by test.
同时，针对不同的产品，通过试验确定投入的分馏辅料及分馏塔板数。
C, this series of products work with air as raw material, without other raw and auxiliary materials, the use of low cost.
本系列产品工作时使用空气作为原材料，无需其他原辅材料，使用成本低廉。
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