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;
