Loaʻa i ka precast girder formwork nā pono o ke kiʻekiʻe-pololei, ka hana maʻalahi, retractile, maʻalahi-demoulding a me ka hana maʻalahi. Hiki ke hoʻokiʻekiʻe ʻia a kauo ʻia paha i ke kahua hoʻolei ʻana, a hoʻoheheʻe ʻia a ʻāpana ʻāpana paha ma hope o ka loaʻa ʻana o ka ikaika, a laila huki i ka ʻōpala o loko mai ke apo. He mea maʻalahi ka hoʻouka ʻana a me ka debugging, haʻahaʻa haʻahaʻa hana, a kiʻekiʻe ka hana.