He aha i pai ake ai te mahi a ngā ngongo pou maitai i ngā puranga raima i roto i ngā whakamātautau kawenga

Mō ngā whakamātautau kawenga hanga turanga, he maha ngā wā ka raru ngā pou raima tuku iho ki te ngāwari me te pakari. I ngā tau tata nei, ngongo purangakua pai ake ngā otinga i ngā papa hangahanga. He kounga teiteingongo maitaime te ngaiongongo purangaHe pumau tonu te mahi a ngā hua ki te pikau kawenga, ā, he ngāwari ake te mahi pai ake i ngā puranga raima tuku iho i roto i ngā whakamātautau hangarau.

Ko te mahi tino pai o ngā ngongo pou maitai i ahu mai i tā rātou hangarau hanga kua oti te whakapai. Ko te whakarewa āwhata te tukanga whakaputa matua mō ngā ngongo pou porowhita kua whakarewahia. Mā te hangarau whakarewa pāmahana teitei, ka hangaia e te tinana ngongo he hanganga hononga kaha-teitei kua whakauruhia. Ka ārai pai tēnei mahi toi matatini i te pakaru me te whakarerekē i raro i ngā kawenga taumaha, kia mau tonu ai te mahi pumau o ngā paipa i roto i ngā taiao hanga raro whenua me ngā taiao hanga uaua mō te wā roa.

Ki te whakatauritea ki ngā pou raima e ngawari ana ki te pakarukaru me te ātete iti ki te pēhanga, he āhuatanga motuhake ngā ngongo pou maitaipakari teitei ake, kaha ake te kaha kawengamete roa o te mau. He pakari hoki te hanganga whakarewa, ā, he tino ātete ki te waikura me te pumau o te mahi, he mea tino pai mō te hangarau turanga, te whakatakotoranga paipa me ētahi atu kaupapa mahi taumaha.

Ko te kounga pono o ngā hua e ahu mai ana i ngā kaihanga ngaio. I whakatūria i te tau 1993, ko Cangzhou Spiral Steel Pipes Group Co., Ltd. tētahi o ngā kaihanga paipa rino porowhita me ngā paninga paipa matua o te motu. Kei Cangzhou, Hebei te kamupene, e 350,000 mita pūrua te rahi, e 680 miriona Yuan te nui o ngā rawa katoa, ā, e 400,000 tana te nui o ngā paipa rino porowhita e whakaputaina ana i ia tau, me te uara whakaputa o te 1.8 piriona Yuan.