ISO9001:2008;CE;UKAS Certificate 1.low Noise, 2.Easy to use, 3.Latest Type, 4.Convenient, Principle: air compressor generats air pressure by the vacuum generator creates stronger suction suck the front cut fabric waste into waste collect bag, and the sewing finished overlock chain will be inhaled into chain cutter, through the cutter cutting line reciprocating motion to achieve purpose.Benifits: ...