Wool Felt Pad 100% Pure Wool, For Mechanical, Electrical, Aviation Factory ... .1)Character:wear-resistance,dustproof,sound-insulation,quakeproof,seal,heat-insulation2)Use:mainly used for a vriety of mechanical ... advantageEco-friendly, anti-static, good wearability, dustproof, cushion, quakeproof, Heat preservation, heatproof, sound insulation, silencing, fire retardant, insulation.CertificationISO9001 ...