?? ?? ??? ????????? ????? ?? 03G103351C / 038103351D / 1118995
????? ?? ?? ?????? ?? ??????? ??? ? ???? ???? ????? ????????? ??? ????? ??20 ???? ??? ?? ????. ????? ? ???? ?? ???? ?????. ????? ?? ISO16949 ?? ????? ???? ??? ???? ??? ? , “High Sealing cylinder head” 、 “the long berguna life of silinder head” and the other 5 Utility model patents.








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