ʻO ka pā kila Galvanized he pā kila me ka wela wela a i ʻole ka electro galvanized coating ma luna o ka ʻili, ka mea maʻamau i hoʻohana nui ʻia i ke kūkulu ʻana, nā mea hana hale, nā kaʻa a me nā moku, ka hana ipu, ʻoihana electromechanical, etc.
Ke hoʻomau nei ka hoʻomohala ʻana o ka hoʻoulu ʻana i ka hoʻoulu ʻana i ka wela wela ma Kina.Mai 1950s a hiki i 1960s, 13 flux hot-dip galvanizing wae no ka hookahi pepa kila papa i successively kukuluia, me ka mana o 100000 t / A. Eia naʻe, ma muli o nā hemahema o ka haʻahaʻa puka, kiʻekiʻe kumu kūʻai, maikaʻi maikaʻiʻole, ka pollution kaiapuni, ilihune. pono waiwai a pela aku, ua hookiia a hoololiia i ka hana.Mai ka hopena o nā makahiki 1970, ua hoʻomaka ʻo Kina e kūkulu i nā ʻāpana galvanizing hot-dip broadband nui.