1. Mea hana a mea hāʻawi hoʻonā, haku a hoʻohana i ke kūlana honua ASTM BS EN40 i ka hoʻolālā a me ka hana. 2. Kuʻi pololei, ʻaʻohe leakage kuʻikuʻi, ʻaʻohe nahu maka, ʻili maʻemaʻe me ka haumia ʻole. 3. Ke kaʻina hana hoʻoheheʻe ʻana i ka pauka, polyester plastic powder coating stability, adhesion ikaika, pale UV.Kiʻiʻoniʻoni mānoanoa ma mua o 10um, ikaika adhesion. 4. ʻenehana galvanizing wela wela, nā ʻili o loko a me waho e ka 75 microns ma luna o ka hoʻomaʻamaʻa anticorrosion coating zinc wela. 5. ʻO ka lawelawe hoʻokahi no nā papahana aupuni: ka hoʻolālā mua, nā palapala manawa, ka papa hana hoʻomalu maikaʻi, alakaʻi ʻenekinia no ka hoʻokomo ʻana. 6. ʻO nā huahana kila waho loea, ikaika ka makani kū'ē, corrosion kū'ē, ola a hiki i 50 makahiki.
