These HB tubes are made of high grade raw materials which ensure its reliability and durability. These are widely used in labs and hospitals. These are made of borosilicate material so therefore do not break on heating. These are made leak proof and transparent so that the user could see through the reactions. These H.B tubes also have different markings on them for measurements. We are well known manufacturers and suppliers of a wide range of round glass HB test tubes, which are widely used in pharmaceutical industries, hospitals, diagnostic labs, research institutions etc. These round HB test tubes are fabricated using premium quality crack resistant glass and hence they do not easily crack or break on heating.
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