Astm A453 Ka helu 660 kahi mea kiko'ī no nā student no nā stute, nā bolts, nā mea hana a me nā mea hana hou aku, i manaʻoʻia no ka hoʻohanaʻana i nā noi kiʻekiʻe. Astm A453 Ka helu helu 660 ua heluʻia i loko o 4 mau papa inoa inoa inoa inoa A, B, C & D, i hanaʻia me nāʻano likeʻole. Hoʻohanaʻia nā mea kūʻai aku 660 i nā pahu pahu pahu, nā kīʻaha kīwaha, pipela i nā flunges a me nā valement, i manaʻoʻia no ka lawelawe kiʻekiʻe kiʻekiʻe. Astm A453 Ka helu helu 660