Nūhou
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JULI PVC mining ventilation duct
He ʻoihana koʻikoʻi loa ka ʻeli ʻana ma lalo o ka honua, ʻo ia ke kumu he mea nui ka ducting i ka ʻoihana kūkulu hale. Hōʻike ka ʻeli ʻana ma lalo o ka honua i nā miners i nā ʻano mea haumia like ʻole, me nā kinoea ʻawaʻawa a me nā uahi, hiki ke pōʻino i ko lākou olakino ...Heluhelu hou aku -
HOALOHALOHA I KA ALOHA NO KA LANAKILA I KA AHAHUI KOE
Ma ke ʻano he mea hana mea hoʻohui PVC me ka ʻoi aku o 15 mau makahiki o ka ʻike, ʻoi aku ka nui o ka Foresight ma mua o 10 mau laina hana no nā lole like ʻole, me ka puka makahiki o 1.5 miliona mau mika o nā ʻano lole like ʻole, ʻoi aku ma mua o 15 mau loea loea me ka manufa waiwai ...Heluhelu hou aku
