Assist on Customs issues, e. g. Customs valuation, audit, etc.
协助处理海关关务问题。
In this thee, the e-valuation for main casting materials available now is put forward and the defect of usual casting materials available now are analyzed.
对现有的主要铸造粘结剂进行了评价，分析了现有常用铸造粘结剂存在的缺陷。
In this thee, the e-valuation for main casting materials available now is put forward and the defect of usual casting materials available now are analyzed.
对现有的主要铸造粘结剂进行了评价，分析了现有常用铸造粘结剂存在的缺陷。
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