Describir: 1978 Annual Book of ASTM Standards

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/ //---`'  | ||__   | |/\| ||  / //\ \\ | |/\| ||  / //\ \\ |  --  // 
\ \\___    | ||__   |  /\  || |  ___  |||  /\  || |  ___  |||  --  \\ 
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