On Dec. 29th, 2022, State Administration for Market Regulation of P.R.China, Standardization Administration of the People,s Republic of China ‘The People,s Republic of China national standard approval issued to post 2022 No.20 ’ approval issued Jinan Zhongbiao Technology Co. , Ltd. and Shandong Zhongbiao Qixin Testing Technology Co., Ltd. developed CRMs，certified reference materials for physical characteristic and chemical composition of anthracite and bituminous.
