The trial procedures.1. rubber pad that makes erections with fermentation from spinach tested. Tensile strength of physical tests 1.1. tensile testing machine. 1.2 biological tests, taking raw rubber went dark and damp in the Cabinet for a period of 7 days, compared to the rubber sheet that uses acid formic acid. 2. bring the water to check that fermentation has the ability to inhibit the fungus on the face by a rubber pad. Disk size 0.3 centimeters to dip in the water today and put on a meal which Raja on the rubber fuel. Clear zone occurred comparative observations on water and Formic acid.
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