Saat sekarang, many daily necessities are made of materials such as copper, besi, baja tahan karat, dll.. Bahan-bahan tersebut mengandung unsur logam berat, which may cause excessive standards if not handled properly.
Misalnya, the main element of stainless steel contains manganese, kromium, dan nikel. To maintain corrosion resistance, baja tahan karat harus mengandung sejumlah kromium. If the chromium is not handled properly, it may lead to excessive chromium. Similarly, improper handling of manganese may result in excessive manganese.
The copper alloy used to make the faucet contains trace amounts of metal elements such as iron, aluminium, dan memimpin. Jika tidak ada petunjuk, sulit untuk terbentuk selama pengecoran. Semakin tinggi kandungan timbalnya, the easier the casting process is. Karena itu, the copper faucet on the market generally contains a certain amount of lead. If the lead-free process is not done well when the factory is manufactured, it will lead to excessive lead.
Alasan lainnya adalah teknologi dan peralatan perusahaan sudah menua, resulting in the control of trace elements. Biasanya, ketika peralatan baru pertama kali dimasukkan ke dalam produksi, produknya berkualitas, namun bila peralatan tersebut digunakan dalam jangka waktu yang lama, the trace elements of the product will exceed the standard. This situation cannot be repaired from a technical point of view, and only new equipment can be replaced. Namun, some factories continue to use it in order to save money. This is a technical problem and a cost issue.
A bathroom equipment seller told reporters that most of the faucets on the market today are copper cores, but the quality is not good. Small manufacturers, cheap faucets, the possibility of lead exceeding the standard is very large. Hal ini karena beberapa produsen tidak membeli paduan kuningan standar untuk mengendalikan biaya, but purchase cheap lead brass from small workshops as raw materials. This lead brass is often high in lead but at half the price of brass alloy.
Bagaimana membedakan kran inferior dari harganya? Some insiders told reporters that a copper faucet with a formal process should cost more than 100 yuan, while tens of faucets are likely to use lead brass.
“Dibandingkan dengan produk besar, tens of dollars of faucets are really not worth spending so much time and energy to pick one by one, dan tidak akan memperhatikan masalah kandungan timbal yang berlebihan.” A Shanghai resident who is renovating at home told reporters.
Dalam hal ini, some insiders said that domestic consumers pay insufficient attention to the quality and safety of faucets, which also makes many unqualified inferior faucets have opportunities.

Pemasok Pabrik Keran iVIGA