Ngwaahịa nwere akara UPC® dabara na koodu na ụkpụrụ America dabara adaba. Ngwaahịa nwere akara cUPC® dabara na koodu na ụkpụrụ America na Canada dị.
Ọkpụkpụ nke ihe nkedo na-adabara BS416: Akụkụ 1: 1990
Ihe: Ígwè nkedo isi awọ
Nha: DN50-DN150
Mkpuchi ime na mpụga: bitumen ojii