Pakadali pano, zinthu zambiri zofunika tsiku ndi tsiku zimapangidwa ndi zinthu monga mkuwa, chitsulo, chitsulo chosapanga dzimbiri, ndi zina. Zida zimenezi zili ndi zitsulo zolemera, zomwe zingayambitse kuchulukitsidwa kwa miyezo ngati sikusamalidwe bwino.
Mwachitsanzo, chinthu chachikulu cha chitsulo chosapanga dzimbiri chili ndi manganese, Chromium, ndi nickel. Kusunga kukana dzimbiri, chitsulo chosapanga dzimbiri chiyenera kukhala ndi kuchuluka kwa chromium. Ngati chromium sinasamalidwe bwino, zimatha kuyambitsa chromium yochulukirapo. Mofananamo, Kusagwira bwino kwa manganese kungayambitse manganese ochulukirapo.
Aloyi yamkuwa yomwe imagwiritsidwa ntchito popanga faucet imakhala ndi zinthu zambiri zachitsulo monga chitsulo, aluminiyamu, ndi kutsogolera. Ngati palibe kutsogolera, ndizovuta kupanga panthawi yoponya. Zomwe zimatsogolera ndizokwera kwambiri, m'mene kuponyera ndikosavuta. Choncho, pompopompo yamkuwa pamsika nthawi zambiri imakhala ndi mtovu wochuluka. Ngati ndondomeko yopanda chitsogozo sichikuchitika bwino pamene fakitale imapangidwa, zidzatsogolera ku lead mochulukira.
Chifukwa china ndi chakuti teknoloji ndi zipangizo za kampani zikukalamba, kupangitsa kuti zinthu ziziyenda bwino. Kawirikawiri, pamene zida zatsopano zimayikidwa koyamba pakupanga, mankhwala ake ndi oyenerera, koma pamene zipangizo zikugwiritsidwa ntchito kwa nthawi yaitali, kufufuza zinthu za mankhwala zidzapitirira muyezo. Izi sizingakonzedwe kuchokera ku luso lamakono, ndi zida zatsopano zokha zomwe zingasinthidwe. Komabe, mafakitale ena akupitiriza kuigwiritsa ntchito pofuna kusunga ndalama. Ili ndivuto laukadaulo komanso nkhani yamitengo.
Wogulitsa zida za bafa adauza atolankhani kuti mipope yambiri pamsika masiku ano ndi ma copper cores, koma khalidwe si labwino. Opanga ang'onoang'ono, mabomba otchipa, kuthekera kwa lead kupitirira muyezo ndi kwakukulu kwambiri. Izi zili choncho chifukwa opanga ena sagula ma aloyi amkuwa wamba kuti athe kuwongolera ndalama, koma gulani mkuwa wotsogolera wotchipa kuchokera kumashopu ang'onoang'ono ngati zida zopangira. Mkuwa wotsogola uwu nthawi zambiri umakhala wotsogola kwambiri koma patheka la mtengo wa aloyi yamkuwa.
Momwe mungasiyanitsire ma faucets otsika ndi mtengo? Ena olowa mkati adauza atolankhani kuti bomba lamkuwa lomwe lili ndi ndondomeko yovomerezeka liyenera kuwononga ndalama zambiri kuposa 100 yuan, pomwe ma faucets makumi ambiri amatha kugwiritsa ntchito mkuwa wamtovu.
“Poyerekeza ndi zinthu zazikulu, madola makumi ambiri a faucets si oyenera kuwononga nthawi ndi mphamvu zambiri kuti asankhe chimodzi ndi chimodzi, ndipo sadzalabadira vuto la kuchuluka kwa lead.” Wokhala ku Shanghai yemwe akukonzanso kunyumba adauza atolankhani.
Mwa ichi, ena amkati adanena kuti ogula m'nyumba salabadira mokwanira za ubwino ndi chitetezo cha mipope, zomwe zimapangitsanso kuti ma faucets ambiri osayenerera akhale ndi mwayi.

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