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橡胶浆粘度测定方法(旋转粘度计法)
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天然橡胶初加工企业安全技术规范
Safety Technical Norm for Primary Processing Enterprise of Natural Rubber
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浓缩天然胶乳 化学稳定性的测定
Natural rubber latex－Determination of chemical stability
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硬质橡胶 硬度的测定
Ebonite -- Determination of hardness by means of a durometer
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橡胶 铅含量的测定 双硫腙光度法
Rubber -- Determination of lead content -- Dithizone photometric method
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