美國PYREX容量瓶Class *
PYREX品牌，容量，A類，snapcap
這些燒瓶的強度是通過機器吹制的身體來顯著增加的，這些身體是密封的重的，重型油管的脖子，工具為snapcap fit。畢業線是尖銳的，*的和巨大的白色塊字母使銘文易于閱讀。1mL和2mL尺寸是試管形狀。這10毫升至2000毫升的毫升裝上了扣帽。
5580-1E 、5580-2E、5580-10、5580-25、5580-50、5580-100、5580-200、5580-250、5580-500
、5580-1L、5580-2L
美國PYREX容量瓶Class *
5580 PYREX Brand, Volumetric, Class A, Snap-Cap
The strength of these flasks has been increased appreciably through machine-blown bodies to which are sealed heavy-beaded, heavy-tubing necks, tooled for snap-cap fit. The graduation line is sharp and permanent and large white block letters make the inscription easy to read. The 1mL and 2mL sizes are test tube shaped. The 10 mL through 2000 mL sizes are supplied with snap-caps.
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