Plug with Hole Size:9mm 10mm 11mm 12mm 13mm 14mm. 7mm 7.5mm 8mm 8.5mm 9mm 10mm 11mm 12mm 13mm 14mm. Plug Solid Size: 3mm 3.5mm 4mm 4.5mm 5mm 5.5mm 6mm 6.5mm. Features: corrosion resistance, acid and alkali resistance, UV resistance, anti-aging.
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