Chapter 131 The Gun of the Shoulder (the fifth watch)

When everyone saw that Liu Hai was coming, Liu Hai coughed and said, "The high-pressure explosion-proof hose mainly depends on the feeding speed, temperature and film covering technology of the nozzle. According to the production requirements, it has multiple layers of film covering, two layers, four layers and six layers."

"It is difficult for us to manufacture in large quantities, so we can manufacture 20 meters and 50 meters at a time."

Liu Hai picked up a stick to draw on the ground, and then explained: "You can make the film first. The length of the film determines the length of the finished product."

"Install a small tool covered with film at the first water outlet, similar to the machine for making sausage."

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