Optical transceivers grow with HD

In the face of fierce market competition, security companies’ evaluation of the security HD market seems to be always too extreme. The more competitive the market is, the more promising it is, but we should also treat it rationally. Why do we define high-definition surveillance with ...read more...

New corn problem that has to be noticed

In the autumn season, with the listing of new corn, new corn has received people's preference as an important feed ingredient. However, during the period when the new corn was used, it often encountered problems such as diarrhea of ​​livestock and poultry, and high feed returns. S ...read more...

Household heat exchanger

The household heat exchanger solves the problem of hot water for the winter of the collective heating family. It works in the same way as a collective heat exchanger. It's just different in size and style. Can be divided into cast iron, cylinder, steel, water storage, plate. The effect i ...read more...

The difference between wood screws and self-tapping screws

The self-tapping screws have high hardness, wide thread pitch, deep thread, and the surface is not smooth. The wood screws are reversed, and the Other difference is more obvious. The rear section of the wood screws has no thread. Wood screws are fine, blunt and soft. Self-tapping screws are th ...read more...

Misunderstanding of LED energy-saving lamps

LED lighting has become one of the key promotion projects in the world, so it has gradually been accepted by ordinary consumers. It is worth noting that ordinary consumers have some misunderstandings about the emerging light source of LED: Misunderstanding one, a few W LED bulbs can replace a ...read more...

Fingerprint lock fourth generation "automatic lock body…

The society continues to develop and the security environment in China has been improved. However, according to reports from the news media, there are still some crimes such as house burglary and violent unlocking in the garden community across the country. The Chinese living environment needs to be ...read more...