1. History of the development of modern networksThe 1G network was born in the late 1970s to the 1980s. It is a cellular radiotelephone system based on analog technology. The sound is transmitted through unencrypted radio waves, and anyone can listen to the conversation using off-the-shelf equipment   Read More>

Wash off the stains, dust and oil on the door frame installation with a neutral detergent. Paste the car seal with its matching double-sided tapeTear the protective film at one end of the car seal strip to the position of the door frame, and then tear the protective film synchronously according to   Read More>

In the previous section, we showed EPDM hoses and nitrile rubber tubes. Today we mainly introduce several common silicone tubes and things to be aware of when using them.1. Red and blue silicone tubeThese hoses are resistant to high temperatures and low temperatures.Can be used to transport antifree   Read More>

1. Always check the seals for large cracks and cracks.Untimely inspection of the car seals to see if there are any cracks, especially if there is any breakage, it should be repaired in time to avoid heavy rain and rain. We can buy adhesives for car seals. If the bigger ones are not repaired, please   Read More>