ISO-certifiering IATF16949: 2016 ISO 14001-certifiering OHSAS18000 certifiering USA ASME T-certifiering USA ASME U-certifiering USA ASME U2-certifiering BV-certifiering Korea KGS-certifiering TPED-fabriksgodkännande Kanada TC-certifikat USA DOT-certifiering