Along with the times utilization of natural fibers composite materials has been developed. The purpose of this research was to know the impact strength of pineapple leaves fiber composites before applied to basic material for Indonesia National Standard (SNI) helmet. Design of this research was true experimental with posttest-only control design. in this research there were two group. https://www.bekindtopets.com/special-offer-Printed-Embroidered-Georgette-save-big/
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