Standard: ISO9001 Number: 17918Q15170ROS Issue Date: 2018-09-04 Expiry Date: 2021-09-03 Scope/Range: Production of ball mills and glove boxes and sales Issued By: Beijing Zhongding Hengchang Certification Co., Ltd.

Standard: CE Number: IT1154MT10091808 Issue Date: 2018-09-10 Expiry Date: 2023-09-09 Scope/Range: Planetary ball mill Issued By: ISTITUTO SERVIZI EUROPEI TECHNOLOGICI

Standard: CE Number: IT1154MT10091810 Issue Date: 2018-09-10 Expiry Date: 2023-09-09 Scope/Range: Vacuum glove box Issued By: ISTITUTO SERVIZI EUROPEI TECHNOLOGICI

Standard: CE Number: IT1154MT10091809 Issue Date: 2018-09-10 Expiry Date: 2023-09-09 Scope/Range: Roller ball mill Issued By: ISTITUTO SERVIZI EUROPEI TECHNOLOGICI

Standard: Patent certificate Number: ZL 2015 2 0836150 6 Issue Date: 2016-08-03 Scope/Range: Planetary ball mill Issued By: State Intellectual Property Office

Standard: Patent certificate Number: ZL 2016 20288854.9 Issue Date: 2016-09-14 Scope/Range: Planetary ball mill Issued By: State Intellectual Property Office

Standard: Patent certificate Number: ZL 2014 2 0375569.1 Issue Date: 2015-01-07 Scope/Range: Planetary ball mill Issued By: State Intellectual Property Office

Standard: Patent certificate Number: ZL 2016 2 00022170 Issue Date: 2016-04-10 Scope/Range: Stirrup planetary ball mill Issued By: State Intellectual Property Office

Standard: Patent certificatw Number: ZL 2014 2 00590097 Issue Date: 2014-10-14 Scope/Range: Lab glove box Issued By: State Intellectual Property Office

Standard: Patent certificate Number: ZL 2016 2 0002216.6 Issue Date: 2016-08-17 Scope/Range: Roller ball mill Issued By: State Intellectual Property Office

Standard: Patent certificate Number: ZL 2015 2 0836442.X Issue Date: 2016-04-27 Scope/Range: Planetary ball mill Issued By: State Intellectual Property Office