1. Covering layer performance: tensile strength, elongation at break, hot air aging, acid and alkali, abrasion, peeling strength of upper and lower coverings, bonding strength between layers, etc.;
2. Overall performance: full thickness tensile strength, alcohol blowtorch burning, drum burning, propane tunnel burning, anti-static, oxygen index, groove degree, straightness, steel wire bonding strength, joint life, joint strength, reference force extension Length rate, cord bond strength, bond strength between cloth and top rubber, fatigue life, minimum low temperature, etc.;
3. Analysis items: component analysis, principal component analysis, map analysis, failure analysis, full component analysis, material identification, etc.
