Hebei Provincial Standard of the People's Republic of China
Scope
This standard is proposed and administered by the Hebei Light Industry Professional Standardization Technical Committee. This standard is drafted by the Hebei Bicycle Professional Standardization Writing Group. This standard refers to the Japanese Industrial Standard JIS D9454-1983 "Bicycle Chain Cover". This standard specifies the product classification, technical conditions and marking, packaging, transportation and storage of bicycle chain covers. This standard applies to chain covers for ordinary, heavy-duty, lightweight and sports bicycles.