IS, 2 
King: Philippine Concrete and its Aggregates 
187 
ill 111 g !!§>! SHI 1111 Hill I 
r r r ^ ™ ~ * * * * * * * * * 
iis isi i issi ei ii iTTTTiiii | 
i « i i i ; 4 .s 
ns hi i ini saas mi iiiii | . j 
' ’ V ’ ' ’ “ ’ i i 
