The following items shows the kinds of gaskets we need. before we decide to order a high number, we'd like to have a sample of them for our engineers to test. once accepted by them, then we'll get a high quantity. would I possibly ask you to send us the samples? 1 - cylindear head gasket for peugeot 405 engin 1800cc renovation 1 - 2 - 3 thick 1.6mm @ 2mm 2 - cylindear head gasket for pride thick 1.5mm 3 - cylindear head gasket for paykan1600 thick 2mm @ 1.5 mm