无码国内精品人妻少妇蜜桃视频-欧洲熟妇色xxxx欧美老妇软件-日本老妇人乱xxy-欧美疯狂做受xxxx高潮小说-尤物国产在线精品福利三区

1、吉川擁有自己的研發團隊，大部分成員擁有同行業10-20年的從業經驗 其中還有成員參與了（1 996年）“中國噴砂機行業”的標準制定。
2、吉川每年投入近500萬的研發費用進行設備研發和改良；
3、吉川研發團隊與華南理工大學和南昌大學為友好合作單位；
4、吉川研發團隊獲得了近60項專利；

1 . Yoshikawa has the industry’s most professional R & D team, most of the members have 10-20 years industry experience
which does not have members involved in the (1 996) “blasting machine industry in China,” set the standard record .
2. Yoshikawa Each year, nearly 500 million R & D R & D costs of the improvement of equipment;
3. Yoshikawa R & D team and the South China University and Nanchang University for the friendly and cooperative units;
4. Yoshikawa R & D team received nearly 60 patents;