D4CB-VGT ????????? ????? ?? 5J025-4AU00 / 5J0154-4AU00 / 22100-4A701
????? ?? ?? ?????? ?? ??????? ??? ? ???? ???? ????? ????????? ??? ????? ??20 ???? ??? ?? ????. ????? ? ???? ?? ???? ?????. ????? ?? ISO16949 ?? ????? ???? ??? ???? ??? ? , “High Sealing cylinder head” 、 “the long berguna life of silinder head” and the other 5 Utility model patents.










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