The specifications or our trawl net as follows:
1. Trawl net materials: HDPE Nylon polyester multifilament
2. Twawl net twine size: dia2mm-7mm
3. Mesh size: 25mm-1000mmST 
4. Net twine Type: HDPE Nylon polyester multifilament Twisted net. Braided rope net.
Knotless net
5. Knot Type: double knot or single knot
6. Mesh type: square mesh or miamond net.
7. Colour：According to customer needs: single-layer ang double-layer net

The structure of the trawl:

According to the structural characteristics of trawl can be divided into sleeve trawl and sleeveless trawl two forms. Sleeved trawl generally has 1 net bag and 2 net sleeves, the upper and lower lines of the net are equipped with an appropriate number of floats and sinks, so that the network port opens vertically. It is the main structural form of Marine trawl, and is also used in inland waters, but on a smaller scale. The structure of sleeveless trawl is sleeveless single bag and sleeveless multi-bag.

1. Sleeveless single bag trawl:

It is a small trawl net. The network port is usually equipped with a fixed brace to keep the network port open. It is used in both Marine and inland waters. Sleeveless multi-bag trawl, usually having more than 2 bags. The number of nets depends mainly on the ecological habits of the fishing object and the tonnage of the vessel. The horizontal and vertical opening of the network port is ensured by the distance between the two boats' trawls and the vertical strut.

2. Sleeveless and sleeveless trawl:

Generally, it is used in the bottom waters, and the middle trawl is mainly used in the middle waters. The main difference between it and the bottom trawl is that the net sleeve or the net sleeve is short, which can reduce the resistance of the net and increase the drag speed; The network port is slightly square or rectangular. In addition to the bottom of the net is equipped with a sink, some also equipped with a weight settling device, to expand the vertical opening scale of the network port and maintain the position of the net in the water layer.

Principles of trawling:

Trawling is the use of the movement of the ship, dragging fishing gear in the seabed or sea water forward, forcing fishing gear through the waters of fish, shrimp, crabs and other fishing objects into the net bag, to achieve the purpose of fishing.

When the fishing boat drags the net forward, the net plate under the action of the current to produce expansion tension, can make the net open horizo