QIANJUN

[ Boring machines; Centrifugal pumps; ] Circular saws; Core drilling bits; [ Drill bits for rock drilling; Electric hand-held drills; Grinding and polishing machines; Metalworking machine tools; Milling cutters; ] Mining bits; [ Perforating machines for metalworking; Power-operated polishers; ] Power drill accessories, namely, non-electrical adapters for use in joining extensions and power drill bits; [ Power drill bit extensions; ] Power drill bits; Power operated metalworking machine tools, namely, turning tools; [ Screwdrivers, electric; ] Bits for power drills [ ; Electrical drills ]