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Description:
fine thread gypsum board screw/drywall screw:1. Material: carbon steel 1022
2. Main size: 3.5x25mm, 3.5x35mm
gypsum board screw:
1. Material: carbon steel 1022
2. Main size: 3.5x25mm, 3.5x35mm
3. Usage: can drill steel board 0.3~1.0mm


