为了解决和缓和民用建筑用木问题,浙江省宁波市塑料研究所试制了“硬质聚氯乙烯中空异型材塑料门与楼梯扶手”的新产品,最近由宁波市科委组织了技术评审。RPVC 塑料内门和扶手都采用以聚氯乙烯树脂为主要原料,加入少量的外加剂挤出成型,成型后的中空异型材经过拼装,焊接成 In order to solve and mitigate the problem of civil building timber, the Ningbo Institute of Plastics in Zhejiang Province has trial-produced a new product called “Rigid Polyvinyl Chloride Hollow Profile Plastic Doors and Stair Handrails”. Recently, a technical review was organized by the Ningbo Science and Technology Commission. RPVC plastic inner doors and armrests are made of polyvinyl chloride resin as the main raw material, and a small amount of admixture is added for extrusion molding. The hollow profile after molding is assembled and welded.