Polyethylene fishing nets are an indispensable fishing tool for fishery production. Coastal fishermen used simple nets to catch fish near the sea earlier. The main fisheries used in fishery production include pick-up nets, stick nets, push nets, arch nets, ground nets, insert nets, grab nets, sticky nets, dragnets, drift nets, trawl nets, nets, spinning nets, open nets, fishing hooks, cockle pans, fishing dumps, foils, river seine nets, rowing nets, net copying, call nets, hanging nets, slipping foil nets, crab baskets, crab dumplings, etc. Among them, dragnets and drift-nets are often used for fishing in the open sea, and sticky nets are mostly used for inland and offshore fishing.