Stainless steel (Stainless Steel) is the abbreviation of stainless and acid-resistant steel. It is called stainless steel that is resistant to weak corrosive media such as air, steam, and water, or is stainless steel; and chemically resistant to chemical corrosion media (acid, alkali, salt, etc.) Corrosion steel is called acid-resistant steel. Stainless steel products are relatively common in our lives, and ROHS testing is required for such products to be sold in the EU. If the product is not certified for RoHS, it will cause an incalculable loss to the exporter, and may cause no one to care about your product; but if it enters the market and is found to have not done relevant testing, it will also cause significant losses to the company!

The main content of the reach certification is to prove that textiles and clothing do not contain harmful chemical substances. Therefore, all textiles and garments produced in the EU or imported into the EU market must pass the registration, inspection and approval of the content of hazardous chemical substances. Once the content exceeds the prescribed content, they cannot be sold on the EU market.

SRRC certification (SRMC certification) is a mandatory certification requirement of the National Radio Regulatory Commission. Since June 1, 1999, the Ministry of Information Industry (MII) of China has mandated that all radio component products sold and used in China , Must obtain Radio Type Approval Certification (Radio Type Approval Certification).

Products made in China need to be exported to other countries around the world, and they usually have to meet local safety certification standards before they can be sold in the region. Because each country has its own national conditions, different geographical environment, national culture, living habits and national protection awareness, this has prompted most countries to formulate a set of product standards suitable for their national conditions to protect their citizens. Safety and environment. In this way, as long as the products are exported to different countries, the standard requirements are different. Therefore, a third-party testing agency has emerged to conduct product testing and certification in a fair, authoritative and objective way to evaluate whether the exporting country meets the standard requirements.

RoHS certification is the \"Directive on Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment\", which stipulates the restriction of lead, cadmium, mercury, hexavalent chromium, polybrominated diphenyl ethers, polybrominated biphenyls and RoHS2.0 in electrical and electronic products A total of 10 hazardous substances such as DEHP, DBP, BBP, and DIBP.

CCC certification is a national compulsory product certification, CQC certification is a national voluntary product certification, also known as logo certification, and CQC is the abbreviation of China Quality Certification Center. The main difference between the two is that CCC certification is compulsory certification, and CQC is voluntary certification. In addition, there are differences in certification classification and product coverage.

The European Parliament and the European Commission issued the \"Waste Electrical and Electronic Equipment Directive\" (referred to as the \"WEEE Directive\") and the \"Restriction of the Use of Certain Hazardous Substances Directive in Electrical and Electronic Equipment\" (referred to as the \"RoHS Directive\") on February 13, 2003. RoHS The purpose of this standard is to eliminate lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers in electrical and electronic products (note: the correct Chinese name of PBDE refers to polybrominated diphenyl ethers, which is a false statement ) A total of 6 substances, with emphasis on cadmium content not exceeding 0.01%.

On December 3, 2001, the General Administration of Quality Supervision, Inspection and Quarantine and the State Certification and Accreditation Administration issued the 2001 Announcement No. 33 \"The First Batch of Products Subject to Compulsory Product Certification\" (hereinafter referred to as the catalog). The catalog has 19 categories and 132 products. The eighth category \"audio and video equipment\" 0801 sub-category is \"single-speaker and multi-speaker active speakers with a total output power of 500W (effective value) or less\" (ie audio), which means that audio is a CCC certified product catalog Products within the scope must be certified by CCC.