Dobavljač tvornice slavina iVIGA
Trenutno, many daily necessities are made of copper, željezo, stainless steel and other materials. Ovi materijali sadrže elemente teških metala. If they are not handled properly, they may exceed the standard.
Na primjer, the main elements of stainless steel include manganese, krom, i nikla. In order to maintain corrosion resistance, nehrđajući čelik mora sadržavati određenu količinu kroma. If the chromium is handled improperly, it may cause excessive chromium. In the same way, improper handling of manganese may lead to excessive manganese.
The copper alloy used to make faucets contains traces of metal elements such as iron, aluminij, i voditi. Ako nema olova, teško se oblikuje tijekom lijevanja. Što je sadržaj olova veći, the easier the casting process. Stoga, copper faucets on the market generally contain a certain amount of lead. If the factory does not do a good job of removing lead during manufacturing, it will cause excessive lead.
Drugi razlog je to što tehnologija i oprema tvrtke stari, causing trace elements to be uncontrollable. Obično, kada se nova oprema prvi put pusti u proizvodnju, njegovi proizvodi su kvalificirani, ali kada se oprema koristi dulje vrijeme, the products will exceed the trace elements. This situation cannot be repaired from a technical point of view and can only be replaced with new equipment. Međutim, some factories continue to use them in order to save money. This is a technical and cost issue.
A seller of bathroom equipment told reporters that most faucets on the market now have copper cores, but the quality varies. Faucets from small manufacturers and cheaper prices are likely to exceed the lead. To je zato što neki proizvođači ne kupuju standardne legure mjedi kako bi kontrolirali troškove, but purchase cheap lead brass as raw materials from small workshops. This kind of lead brass tends to have a high lead content, but the price is only half of the brass alloy.
Kako razlikovati inferiorne slavine od cijene? An industry insider told reporters that a copper faucet with formal craftsmanship should cost more than one hundred yuan, while a faucet worth tens of yuan is likely to use lead brass.
“U usporedbi s velikim proizvodima, faucets worth tens of yuan are really not worth spending so much time and energy to choose one by one, i neće obraćati pažnju na problem prekomjernog sadržaja olova.” A Shanghai citizen who is decorating his home told reporters.
S tim u vezi, some people in the industry said that domestic consumers did not pay enough attention to the quality and safety of faucets, which also gave many unqualified and low-quality faucets an opportunity.
