The name of the reference substance in the Central Inspection Institute has "
Varieties with "▲" in the name of the reference product of the China Inspection Institute: Please provide the unit introduction letter (need to be stamped) and invoicing information (do not need to be stamped) to the new site of the China Inspection Institute for purchase. The price and batch number of the reference product can be www.gbw.org.cn inquiry on the National Standard Product Network - relevant China Inspection InstituteFor varieties with "▲", please click -
