The national standard plan "Earth-moving machinery — Tooth", jointly drafted by several companies, was issued on July 21, 2021, and the project is now approved and will be implemented on the project release date.
The National Standard Plan "Earth-moving machinery — Tooth" is under the responsibility of TC334 (National Technical Committee for Standardization of Earthmoving Machinery), as well as implemented by it, and the competent authority of the project is the China Machinery Industry Federation.
The project plan number is 20211788-T-604, issued on July 21, 2021, with a total project cycle of 18 months. The full replacement standard of the project is GB/T 25628-2010. The Chinese Standard Classification Number and International Standard Classification Number of the project are P97 and 53.100 respectively.
The main drafting units of the project are Ningbo Heshun New Materials Co., Ltd., Shantui Construction Machinery Co., Ltd., Shanzhong Construction Machinery Co, Ltd., Ningbo Yasheng Casting Industry Co., Ltd., Qingdao Leiwo Construction Machinery Co., Ltd., Tianjin Construction Machinery Research Institute Co., Ltd. The main drafters included Ren Meikang, Wang Zhangling, Yu Hailiang, Xu Gang, Li Mingguo and Deng Yanfang.
The project received an 80.60% and 100.00% approval rate in two ballots in February-March 2019 and August 2022, respectively. It has now gone through the online public notice, drafting, comment, review, and approval process and will soon be released and implemented.