ʻO Boya Metal kahi hale hana kūikawā hiki ke hana i ka ʻōwili tubing maikaʻi ma North of China. Hana ʻia ka ʻōwili tubing i hao hao a i kila kila paha, i hiki ke hoʻohana ʻia no ka hana ʻana i nā pale pale, nā puka pā a me nā mea hou aʻe. 

No nā huahana hao hoʻonaninani ka ʻōwili tubing, ʻo ka laulā o ka hao hoʻonaninani mai nā mea maʻalahi, nā ʻāpana hana i nā mea nani, paʻakikī e hiki ai ke kāhiko i kāu papahana e lilo i kāu ponoʻī.

ʻO ka palena wale nō kou manaʻo.