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陶瓷塊
Alumina Ceramic
Alumina Ceramic Crucible
SSIC ceramic bearing
Alumina Ceramic
Alumina Ceramic Rods
氧化鋁陶瓷板
氧化鋁陶瓷管
Alumina Ceramic Plates
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Jiangsu YuBei Ceramics Co., Ltd. Tel：0510-80722669 Mobile：13524881759
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