Simple respirator and respirator training

First, the simple production of gas masks

The simple gas mask is made of a transparent plastic bag as a mask cover, and a poison mask made of a filter canister is filled with a filter and a filter material. Its production steps are as follows: .......

Embedded Hard Disk Recorder: Features and Common Troubleshooting

Embedded hard disk recorder is a high-tech product combining computer technology, network technology, digital video technology, traditional video and security technology. It has high technical content and is a new generation of DVD and tape recorders. It can be used for remote monitoring of po.......

Instructions for use of the input level gauge

The advantages of the input type liquid level meter are: high measurement accuracy; easy installation; the signal can be remotely transmitted. The advantages of the remote-controlled liquid level meter are: high measurement accuracy; easy installation; the signal can be rem.......

How to choose a million HD network camera?

In 2013, the application of millions of high-definition network monitoring systems will be further expanded. More high-definition network monitoring products are springing up. Most people have not yet emerged from the scam of the analog surveillance market. The HD storm has al.......

Copper rosin acid use method and detailed explanation

According to the pesticide network , copper rosinate is a broad-spectrum, protective organic copper fungicide, which mainly inhibits the synthesis of fungal and bacterial proteins. Copper rosinate has good efficacy, can be used to control common.......

Environmental Cable Market: The "Blue Ocean" Field to be Developed

Since the beginning of the new century, the issue of environmental protection has become increasingly prominent and has attracted more attention from all over the world. Today's individuals, companies, organizations, countries, and even the world are actively exploring ways to protect.......