... QB/T1539 Standard, is international model Mullen-type tester.This tester is mainly used for testing the burst ... film and compound film etc non-paper material.This tester has the functions of data-measuring, exchanging, adjusting ... We have two types of this tester, manual type and pneumatic type.2.Features:2.1 Computer-controlling technology ... buyer if you want pneumatic type burst tester Burst tester