... pressure, speed of plastic film & plastic bag etc. Heat Sealing TesterStandards:ASTM F 2029-2000, QB/T 2358 ... sealing speed and pressure tec.Application :* Filmsrigid films, shrik films, stretch films, plastic films, plastic composite films, paper-plastic composite films,aluminized ... films, aluminum foil, aluminum composite films, high barrier films and many others. Eg. PET, OPP, CPP, ...