CORK SILICON – GUPTA BRAND 10007012F Posted on February 22, 2017May 1, 2017 by admin Translucent, highly elastic, odourless, suitable for use over a temperature range -50 to 250 Deg.C, can be sterilized by steam or by hot air. Available in different sizes,ranging from bottom dia 9mm-31 mm,also available in single and double holes.