Recently, firefighters' protective clothing made of Lenzing thermal protective fiber was presented at the Interschutz exhibition in Leipzig, Germany, once every five years. Lenzing also held a press conference to demonstrate the organization of its protective clothing for the first time. The Leipzig Security Exhibition is the largest professional trade show in the fire extinguishing and life-saving product industry. Professor Herfried Pessenhofer from Graz University of Medical Sciences conducted a topic-based research on the "strong functionalities that materials can exhibit." In the experiment, he tested Lenzing thermal protective protective clothing and compared it with other protective clothing. The results showed that Lenzing thermal protective fabric has superior physiological wear advantages because of its moisture management function. It is reported that this year is the 45th year that Lenzing Modal has passed. Its total output has reached 1 million tons.
Non-tapping screws are machine Screw, the pieceworker to be fastened must be tapped with taps in the screw hole in advance to match the screw threads.
The difference between tooth screws and other screws depends on whether they can be used together with nuts. Tooth screws can be used with nuts. And relative to the screws of other teeth, there are self-tapping screws. The nut of this kind of screw has no bow teeth. As for the standard teeth and fine teeth are only different pitch, it is the nut of the machine screw
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