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DINSEN Baƙi Bituminous 4″ CSA B70 Takaddun shaida Ba-Cibiya Bututun ƙarfe da aka yi da siminti
Tura bututun ruwa na ƙarfe mai haɗin gwiwa wanda ya dace da daidaitaccen ISO2531/EN545/EN598 -
ASTM A888 Hubless Bututu
Kayan aikin bututun ƙarfe na magudanar ruwa na ASTM A888
ASTM A888 na'ura mai ba da hanya tsakanin hanyoyin sadarwa





