Standard Thai Rubber grade 20 (STR20) is referred to TSR (Technically Specified Rubber) in Thailand with its own TSR standard with regard to the international ISO standard.
It is produced mostly from field coagulam (cup lump) and mixed with rubber sheet or unsmoked sheet. It is most widely used by the tyre industry.
International Rubber Consortium Limited (IRCo)
2nd floor, Rubber Research Institute of Thailand,
50 Phaholyothin Road, Ladyao, Chatuchak, Bangkok 10900, Thailand
Chief Executive Officer
Assistant Secretary
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