What are the specifications of the manhole anti-falling net? What materials do you have?

Generally,139cm3119 anti-falling nets 03 18 are mostly round, with a diameter of about 60/70/80cm, but depending on the wellhead size, there are also square anti-falling nets. The materials of manhole anti-falling net are mostly polyethylene anti-falling net, polypropylene anti-falling net and polyester anti-falling net. Everyone has widely become a nylon fall net. At present, underground wells are being installed in most cities to avoid various accidents. If you want to buy it, I advise you to buy one with patent certificate, inspection report and certificate of conformity, so that the quality is more guaranteed.