... machine to do surface treatment, so as to make film surface show metallic lines ... m, 30μm, 38μm, 50μm, 75μm, 100μm 2) Film width: 1,300mm 3) Standard coil length: benchmark as 25μm ... , 3,000 meters 4) Max. rolling length : benchmark as ... 25μm, 9,000 ...