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Zhongrui Glass Tools Factory, located in weimin industrial park, hetang town, Jiangmen City, Guangdong Province, is a professional manufacturer of glass drill bits. Since its inception in 2004,Zhongrui is growing up very fast with professional & focused on casting quality production concept, constantly researching and improving production technology, now our deep hole drill bits for glass, stone , crystal that can drill 300mm depth one time and our latest product free-grinding glass drill bit that suit to 2...
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