Oghere ntu adịghị anya.Ijikọta osisi triangle na mmanya na-agba ume.
Nkà na ụzụ ọdịdị: elu galvanized, enweghị mgbawa, ebe ojii na-enweghị galvanized, mgbe ụgbọ elu adhesion dị larịị na-enweghị ihe na-enweghị isi.
Ngwaahịa: A na-eji waya Q195 mee ya, a na-azụkwa ihe niile site na nnukwu igwe igwe mgbe niile, ya mere a na-ekwe nkwa ịdị mma nke akụrụngwa.