covering scratch test machine solid insulation scratch tester iec60335 scratch tester iec 60950 scratch testing machine scratch test machine scratch testing of iec 60335

We are profession Covering scratch test machine manufacturers ,Scratch Test Machine,to determine the adherence and the durability of protective coverings on printed circuit board and of insulating layers on accessible hazardous parts or metal parts，according to IEC60950 figure 2K and clause 2.10.8.4,IEC60335-1 clause 21.2.