
Standard Test Method for Determining Impact Resistance of New Low Slope Roof Membranes Using Steel Balls (Z8295Z)
出版:American Society for Testing and Materials

專家解讀視頻
Standard Test Method for Determining Impact Resistance of New Low Slope Roof Membranes Using Steel Balls (Z8295Z)
出版:American Society for Testing and Materials
專家解讀視頻