Test Techno Consultants manufacturers Crush Resistance Tester. Test Techno Consultants offers wide range of testing equipment for the paper, plastic and packaging industry. The Crush Resistance Tester is useful for corrugated carton / tray. This tester is suitable for testing ring crush test for paper, flat crush test for corrugated board, edge crush test for corrugated board, and pin adhesion test for corrugated board.