The key depends on the scale you drive. Large-scale sheet metal equipment: girder straightener, welding machine, molding machine, carbon dioxide gas protector, belt sander, hydraulic connecting rod jack, grinder, pneumatic drill, sheet metal hammer and sheet metal pad. ....
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Painters: spray booth, air compressor, dry grinding system, track grinder, disc grinder, short-wave infrared lamp, spray gun, polishing machine, etc.