Release time:2019-12-04
Type of Patent:Invent
State of Patent:Authorized patents
Authorization number:ZL201710259494.9
Service Invention or Not:no
Application Date:2017-04-20
Publication Date:2018-02-23
Authorization Date:2017-08-08
Pre One:A kind of mechanical expanding machine for large diameter rings
Next One:Testing device and testing method for friction characteristics of hydraulic cylinders and guideways of construction machinery
The Last Update Time:..