... IEC60695,IEC60884,IEC60335,IEC60598,IEC60950; 2.steel ball pressure test devices; 3.one year warranty; 4.product in stock ... ; 20N Ball Pressure test devices testing equipment 1.Application:Ball pressure tester is ... heating chamber on the surface of the test.In the test temperature specified by the after 60min + ... use.Product details: 20N Ball Pressure test devices testing equipment