iVIGA kraanitehase tarnija
Hetkel, many daily necessities are made of materials such as copper, raud, roostevaba teras, jne. Need materjalid sisaldavad raskemetalli elemente, which may cause excessive standards if not handled properly.
Näiteks, the main element of stainless steel contains manganese, kroom, ja nikkel. To maintain corrosion resistance, roostevaba teras peab sisaldama teatud koguses kroomi. 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, alumiiniumist, ja plii. Kui pliid pole, seda on valamise ajal raske moodustada. Mida suurem on pliisisaldus, the easier the casting process is. Seetõttu, 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.
Teine põhjus on ettevõtte tehnoloogia ja seadmete vananemine, resulting in the control of trace elements. Tavaliselt, kui uued seadmed esmakordselt tootmisse pannakse, tema tooted on kvalifitseeritud, kuid kui seadet kasutatakse pikka aega, 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. Kuid, 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. Põhjus on selles, et mõned tootjad ei osta kulude kontrollimiseks standardseid messingisulameid, 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.
Kuidas eristada kehvemaid segisteid hinnast? Some insiders told reporters that a copper faucet with a formal process should cost more than 100 jüaan, while tens of faucets are likely to use lead brass.
“Võrreldes suurte toodetega, tens of dollars of faucets are really not worth spending so much time and energy to pick one by one, ja ei pööra tähelepanu liigse pliisisalduse probleemile.” A Shanghai resident who is renovating at home told reporters.
Sellega seoses, 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.
