国产精品亚洲无码_国产精品99久久精品2020_久久综合伊人77777_欧洲亚洲AV福利一区二区三区

EN

Honor certificates

27 years of professional customized gear transmission manufacturers, high-speed teeth, bevel gears for 10 consecutive years into the domestic gear industry top three, has been awarded 45 national invention and utility model patents

Chongqing "specialized, refined, distinctive and innovative" enterprise

2023-03-08 Source:Original Views:1001

Tel

023-47852899 / 023-68185200

Top