Generic name: For antibiotics -- halogenated butyl rubber plug for sterile powder for injection
Standard: YBB00052005-2015, ISO 8362-2, USP(381) and EP(3.2.9)
Specification: 13A, 13AF, 20A, 21A1, 20A2, 20AF, 20AK, 20B2, 20BF, 20B2-1, 20B2-2, 20B2-3, etc.