... carboard, soft package cases, crates, corrugate etc. Box Compression TesterStandards:GB/T16491,GB4857.4 ,GB/T4857.16,ISO2872 , ... ,ISO12048,JIS Z0212Function: GBN 2000Z Box compression tester is used to test the compression strength, bending strength ,proof pressure, ... for service3 Speedy reply, 12hrs response to customer questions4 Software free update5. Minor maintenance ---parts ship within 24 ...