1) Heat sealing tester 2) test heat sealing temperature, pressure, speed of plastic film & plastic bag etc. Heat Sealing TesterStandards:ASTM F 2029-2000, QB ... /T 2358-1998, ,YBB 00122003Function:To test package heating tempeature range, heating seal strength , heat sealing speed and pressure tec.Application :* Filmsrigid ...