Download or read book YB T 091 2019 Translated English of Chinese Standard YB T 091 2019 YBT091 2019 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-07-05 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the terms and definitions, classification and code, technical requirements, test methods, inspection rules, packaging, marking, transportation, storage of forging (rolling) steel balls. This standard applies to forging (rolling) steel balls, which are used as grinding media in ball mills, semi-autogenous mills, etc.