Ua kapa ʻia ka paipu kila i hoʻopaʻa ʻia i ke anu. Hoʻohana ia i kahi kaʻina hana electroplating a ʻo ka pā o waho wale nō o ka paipu kila i galvanized. ʻAʻole galvanized ka paia o loko o ka paipu kila.
Hoʻohana ʻia nā paipu kila wela wela, a ʻo nā paia o loko a me waho o nā paipu kila he mau papa zinc.

ka ʻokoʻa:
1. He ʻokoʻa nā kaʻina hana: ka lāʻau kemika a me ka mālama kino; paʻa ka uhi wela wela a ʻaʻole maʻalahi e hāʻule.
2. He mānoanoa ka uhi galvanized wela, no laila ua ikaika ka anti-corrosion. ʻO ka Galvanizing (electroplating) ka uhi ʻaʻahu a me ka maikaʻi o ka ʻili, a ʻo ka mānoanoa o ka uhi ma waena o kekahi mau microns a ʻoi aku ma mua o ʻumi microns.
3. ʻO ka galvanizing wela kahi hana kemika a me ka hopena electrochemical. He lapaʻau kino ka Galvanizing. Hoʻopili wale ia i kahi papa zinc ma ka ʻili. ʻAʻohe zinc plating i loko, no laila e hāʻule maʻalahi ka papa zinc. Hoʻohana pinepine ʻia ka hot dip galvanizing i ke kūkulu hale.
4. Hoʻopili ka paipu kila i hoʻoheheʻe ʻia me ka pahu hao e hana ai i kahi ʻāpana, a laila hoʻohui i ka matrix a me ka uhi.