About OGAWA TOSHIO
About 美味技術研究会誌
About biodegradable polymer
About polylactic acid
About plastic film
About microbial degradation
About polybutylene succinate
About physical property
About chemical property
About waste treatment equipment
About Starch
About Biodegradable Plastics
About disposer
About garbage processing machine
About Polymeric materials in general
About Resistivity
About 生分解性プラスチック