Gasket material: brand - status does not make specific rules, according to the card requirements.

Common specifications: thickness <= 1.0-0.04, 1.5-3.0 +- 0.05.

Width: <=1000 0, +2 length: <= 2000 0, +3.

Diagonal: <=500 <=2 >500 <=3.

Common appearance benchmark: aluminum, not allowed to be glued to aluminum, fine wire and aluminum polishing qualified;

bare aluminum : not allow;

Plate type: visual level, wave height should not exceed 0.5% of short side.

Other: batch defects inconsistent with normal, report to superiors;