Wahi a nā helu, ua hana ʻo Kina ma kahi o 5.52 miliona tons o nā paipu kila welded i ʻAukake, e ulu ana ma 4.2% i hoʻohālikelike ʻia i ka mahina hoʻokahi i ka makahiki ma mua.

I nā mahina ʻewalu mua o kēia makahiki, ʻoi aku ka nui o ka hana ʻana o ka paipu kila welded a Kina ma kahi o 37.93 miliona mau tona, he 0.9%.