Multi-layer electroplated tungsten alloy corrosion-resistant wear-resistant internal and external plated sleeve
WANG LEI, QIAN YAOYAO, SUN DAPENG, KANG SHOUHUI, WANG ZONGXIANG, LIU XINNING, PU BAOLIN
Year of Publication 01.12.2020
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Year of Publication 01.12.2020
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Dual-purpose grabbing device with good supporting property for automobile tire
QIAN YAOYAO, MAO HUAQING, LI MINHUI, XU FUHUA, JIN HUI, YING SHENTING
Year of Publication 19.10.2018
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Year of Publication 19.10.2018
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Oil recovery sampling device
QIAN YAOYAO, GUO PING, GAO YILING, KANG SHOUXING, GENG HONGXIA, LI CUIFANG, FAN YINGBIN, MENG LEI, ZHANG WULIANG, WANG CHUNXU, REN ZEYING
Year of Publication 12.06.2018
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Year of Publication 12.06.2018
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Fixing device for polished rod sealing device press cap of oil sucking well
QIAN YAOYAO, GUO PING, ZHAO KAIYU, FAN YINGBIN, WANG CHUNXU, WANG RUIHONG, WANG XIUMEI, GUAN SHENGKAI
Year of Publication 30.04.2014
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Year of Publication 30.04.2014
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