ʻO nā pōhaku lepo ʻaʻole i puhi ʻia he ʻano mea hou o ka pā i hana ʻia me ka lehu lele, cinder, gangue lanahu, tail slag, chemical slag a i ʻole one maoli, ʻōpala kahakai (hoʻokahi a ʻoi aʻe paha o nā mea maka ma luna) me ka ʻole o ka calcination wela kiʻekiʻe.

Me ka hoʻomau mau ʻana o ka hoʻomohala ʻana i ke kūlanakauhale, ʻoi aku ka nui o nā ʻōpala hana i nā makahiki i hala iho nei, kahi i hoʻopilikia ai i ka ʻoihana hoʻokele kūlanakauhale. Ua ʻike mālie ke aupuni i ke koʻikoʻi o ka mālama waiwai ʻana i nā ʻōpala kūkulu; Mai kekahi ʻaoʻao ʻē aʻe, he ʻano waiwai nō hoʻi ka ʻōpala kūkulu hale. Ma hope o Leishi Chengxin brick production line, hiki iā ia ke lilo i mea pā hale hou i ka lako pōkole i kēia manawa, a ua hoʻohana piha ʻia.

ʻO ka lehu lele ka mea haumia loa i ke kaiapuni. Ma Kina, hiki i ka huahana i nā tausani o nā tona, a ʻaʻole hoʻohana ʻia ka hapa nui o lākou, ʻaʻole ia e hoʻopau wale i nā kumuwaiwai, akā ke kumu hoʻi i ka hoʻohaumia ʻana i ke kaiapuni. ʻO ka ʻoiaʻiʻo, ʻo ka lehu lele kekahi mea hana pōhaku maikaʻi. Ma hope o ka Leishi Chengxin brick e hana ana i ka laina hana, hiki ke lilo i mea pā hale hou i ka lako pōkole i kēia manawa, i hoʻohana piha ʻia.

ʻAʻole wale ka ʻōpala hana, ka lehu lele, ka huelo, ka hoʻoheheʻe ʻana i ka metala a me nā ʻōpala paʻa ʻē aʻe, hiki i ka Lei Shi Chengxin ke kūkulu ʻana i ka ʻōpala unburned brick machine hiki ke hoʻololi i ka ʻōpala i waiwai, a pili pū ka "pepe" i ka mālama wai, ka pā, ka lepo, ka māla a me nā mea ʻē aʻe!