Gelonhui March 22 丨 Honghui New Materials (002802.SZ) announced that the company recently received an invention patent certificate issued by the State Intellectual Property Office. The name of the patent is a PVC calcium-plastic hollow board and its preparation method.
洪汇新材(002802.SZ)：一种PVC钙塑中空板及其制备方法取得专利证书
Honghui New Materials (002802.SZ): A PVC calcium-plastic hollow board and its preparation method obtained a patent certificate
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