Tea seed oil presser capable of preventing oil leakage von QIN XUELONG, NIU AILI, FU JUN, ZHANG GUOFA, BA SHUAIYING, SUN XIAOMEI

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Remote monitor with good stability von QIN XUELONG, ZHANG YUEQIANG, CHU QIANG, FU JUN, XU FEI, BA SHUAIYING

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Multi-stage squeezer for sesame oil von ZHU HONGJUAN, NIU SAIHU, ZHANG GUOFA, ZHANG YI, ZHANG NI, BA SHUAIYING

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Cleaning sieve of stoning machine von NIU SAIHU, LI FANGWEI, CHEN XIAOKANG, ZHANG GUOFA, YANG LEI, YANG WENLI, BA SHUAIYING, WU PENG

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