该数据名称为Porous single resin fiber composite material and method for manufacturing porous single resin fiber composite material,数据格式为文档,数据内容是国外林业专利,专利时间是2020年。
PROBLEM TO BE SOLVED: To provide a composite board that does no require a complex structure to achieve sufficient (bi-directional) strength for normal use. SOLUTION: The present invention relates to a