Membraseal-type tubes are usually pierced open with a “spike” cap of polythene or hard plastics.
Membraseal-type tubes are usually pierced open with a “spike” cap of polythene or hard plastics.
破封型软管则经常配有聚乙稀或硬塑料制的“钉状”管盖以刺穿密封的管口。
Membraseal-type tubes are usually pierced open with a “spike” cap of polythene or hard plastics.
破封型软管则经常配有聚乙稀或硬塑料制的“钉状”管盖以刺穿密封的管口。