Mun taimaka duniya girma tun 2012

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Tarihin ci gaba na ƙaramar ƙauyen birni a cikin gida da waje

Kwanan nan, a cikin kasuwar gidaje ta busa fashewar "iska mai haske ta baƙin ƙarfe", wannan sabon abu ya sa mutane da yawa sun ba da hankali ga. Gidan ƙarfe mai haske ya bayyana a China a cikin 1990s. A yau, fasaha ta ƙera ƙirar ƙarfe ta manyanta, ƙasa ta haɓaka, kuma ta shiga cikin hangen nesan jama'a bisa hukuma. To kasashen da suka ci gaba kasashen waje yaya ake gina gida? Saboda karfafa wayar da kan jama'a game da muhalli da kuma karancin katako da sauran abubuwa, kasashe da dama kamar Amurka, Japan, Burtaniya, Ostiraliya, suna himmatuwa wajen inganta aikace-aikace da ci gaban kananan garuruwan karfe masu haske.

Tun a shekarun 1960, Ostiraliya ta gabatar da batun "shigar da sauri na gina gidaje", amma saboda kasuwar ba ta balaga ba, ba ta ci gaba sosai ba. A cikin 1987, babban ƙarfin ƙarfe mai ƙarancin sanyi mai haske ya bayyana, kuma bayanin haɗin gwiwa na Ostiraliya da New Zealand, kamar yadda / nzs4600 sanannen ƙarfe mai sanyi, aka bayar da aiwatarwa a cikin 1996. Irin wannan ƙarfe yana da ƙarfin ɗaukar nauyi. Idan aka kwatanta da ƙarfin ɗaukar nauyi ɗaya na itace, nauyin 1/3 ne kawai na nauyin katako. Farfajiyar tana gallon. Karkashin yanayin babu garambawul, karko zai iya kaiwa shekaru 75.

Gidajen ƙarfe masu haske suna girma cikin sauri a Amurka. A cikin 1965 ƙananan ƙarfe masu ƙananan ƙarfe sun kai kashi 15% kawai na kasuwar gine-gine a Amurka; A shekarar 1990 ya tashi zuwa kashi 53, yayin da a 1993 ya tashi zuwa kashi 68 sannan zuwa 2000 ya tashi zuwa kashi 75 cikin 100. Daidaitawa, tsarin wa'azantarwa, kwarewa, kasuwanci da kuma zaman jama'a na abubuwan zama da kayan aikin kusan 100%. Hayar kayan masarufi, kayan aiki da kayan kida an bunkasa sosai, kuma digiri na kasuwanci ya kai 40%.

A cikin 'yan shekarun nan, ginin keel na karfe mai haske da ƙarfe mai sanyi shine sabuwar hanyar gini wacce ke haɓaka cikin sauri a Turai da Amurka. Ana amfani dashi ko'ina a cikin ƙauyuka, gidaje, wuraren wasan kwaikwayo, kulaflikan ofis, makarantu, asibitoci, gine-ginen kasuwanci da sauransu. A Ostiraliya, ana gina gidaje kimanin keel miliyan 600 na keɓaɓɓen keel a kowace shekara 120,000, wanda ya kai kimanin kashi 24% na ƙimar duk kasuwancin da ke Australia A Amurka yawan gidajen da aka gina ta amfani da wannan tsarin ya tashi daga 55,000 a tsakiyar shekarun 1990 zuwa 325,000 a 2000. A halin yanzu, irin wannan ƙaramar gidan ƙarfe mai haske ya zama babban sifar tsarin gine-gine a ƙasashen da suka ci gaba.


Post lokaci: Mar-18-2021