1) Applicable to PCB, stainless steel sheet, film for dusting; 2) Sizes: 1", ... process of small particles, impurities, fiber, copper scrap, dust etc., to improve the yield of electronic products.2,Features:1)high ... , medium and low viscosity2)non-toxic pollution-free rust; comfortable to use, the roller rotate freely.3,Applications: .PCB, stainless ...