Early childhood education machine is an educational electronic product specially designed for early childhood education to promote children\'s interest in learning. Fully train children\'s learning ability. At the same time, there is a human-computer interaction, and the functions of rush answering, encouraging answering, and intelligent scoring are added to help children develop interest in learning and develop their potential. The early childhood education machine combines multiple intelligence education theories, selects thematic scenes according to the children’s life experience and psychological characteristics, and integrates the eight major fields of English, pinyin literacy, mathematical logic, potential development, natural common sense, parent-child interaction, entertainment, and morals into each theme. , Comprehensive knowledge, clear classification; cute cartoon anime image, fun learning, greatly help children\'s attention, thinking ability and other aspects to improve.

The \"KC\" logo means \"Korea Certification\". The 13 mandatory legal marks currently used in South Korea will be unified into the unified mark of the country. This will simplify the certification process, reduce the cost of manufacturer certification, and make the KC logo a world-recognized brand.

Smart sockets now generally refer to sockets with built-in Wi-FI modules for functional operations through the client of the smartphone. The most basic function is that the client can remotely control the current of the socket and set the timer switch of the socket. Smart sockets have to pass the test of an authoritative third-party testing and appraisal agency to meet the relevant product safety regulations; and it also represents that the manufacturing plant agrees to accept strict punctuality to ensure the consistency of product quality before it can enter the market.

Intelligent robots, as a technology containing considerable multi-disciplinary knowledge, are almost accompanied by artificial intelligence. Intelligent robots are becoming more and more important in today\'s society. More and more fields and positions require intelligent robots to participate, which makes the research of intelligent robots more and more frequent. Although it is still difficult for us to see the shadow of intelligent robots in our lives. But in the near future, with the continuous development and maturity of intelligent robot technology. With the unremitting efforts of many scientific researchers, intelligent robots will surely enter thousands of households. Better serve people\'s lives and make people\'s lives more comfortable and healthy.

CCC certification materials are roughly divided into three parts, the first application materials, the second part is the sample testing materials, and the third is the factory audit materials.

GB/T19212.17-2019 \"Safety of transformers, reactors, power supply units and similar products with a power supply voltage of 1100V and below. Part 17: Special requirements and tests for switching power supply units and transformers for switching power supply units\" in 2020 Implemented on May 1, 2014, this standard replaces GB19212.17-2013.

On June 16, 2020, the European Union Chemicals Agency (ECHA) added 4 substances from the 23 batch of 5 review substances to the SVHC candidate list.

China Model Approval is abbreviated as SRRC certification, which is a national compulsory certification, which aims to distinguish the civilian band from the military band in the wireless band. It is the technical management of the technical parameters of the spectrum parameters before the radio transmission equipment is put into use in the development, production, import, purchase and other links. From June 1, 1999, the radio component products sold and used in China must obtain the radio model approval certification. The domestically produced, sold and used radio transmission equipment must be subject to type approval, and the approval certificate and type approval code shall be issued. The type approval code shall be indicated on the label of the factory equipment.