A super soft cloth sponge sand - invention patent

A super soft cloth sponge sand - invention patent

A multi-layer sandpaper for reciprocating grinding and polishing of paint surfac

A multi-layer sandpaper for reciprocating grinding and polishing of paint surfac

A double-sided sandpaper and processing equipment - patent certificate

A double-sided sandpaper and processing equipment - patent certificate

An ultra-soft cloth film sandpaper - invention patent

An ultra-soft cloth film sandpaper - invention patent

Sandpaper with fiber anti-slip layer - Patent Certificate

Sandpaper with fiber anti-slip layer - Patent Certificate

A soft sandpaper and its cutting equipment - patent certificate

A soft sandpaper and its cutting equipment - patent certificate

Abrasives Application Equipment for Sandpaper Production - Patent Certificate

Abrasives Application Equipment for Sandpaper Production - Patent Certificate

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