approvalsgeneraltechnical requirementroutine testvisual checkschecking fixturesspring pin fixture concentricity checkfixture for checking L bends holefixture for checking catch holder holes fixture for checking position of shaft holeswelding quality checkpowder coating checkpowder coating inspection reportmaterial certificatesaudit of supplier and sub-supplierpacking traceabilityadditional informationlisting of related documents