Showing 21 - 40 results of 136 for search '"ZHENG QINGXIANG"', query time: 0.81s Refine Results  

Grain drier

by ZHENG QINGXIANG
Year of Publication 23.12.2015
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Patent

First breaker

by ZHENG QINGXIANG
Year of Publication 16.12.2015
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Patent

Rope fastener

by ZHENG QINGXIANG
Year of Publication 24.09.2019
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Patent