General projects: bio-based materials technology research and development; bio-based materials polymerization technology research and development; bio-based materials manufacturing; bio-based materials sales; industrial textile products sales; plastic products manufacturing; plastic products sales; Labor protection supplies sales; daily mask (non-medical-RRB- production; daily mask (non-medical) sales; engineering and technical research and test development; plastic processing equipment sales; Technology service, technology development, technology consultation, Technology Exchange, technology transfer, technology promotion; Research and development of new materials technology (except licensing business, may independently operate non-prohibited or restricted projects according to laws and regulations)