1,Determine the material, according to your needs, determine whether to use virgin or recycled material. Usually the price is much more expensive if you use all virgin material. Transparent colours can only be produced with virgin materials.
2, confirm the size and weight, according to what you plan to load, to confirm the size and weight. For some heavy items (stone, sand, cement) you can use a smaller size to hold the same weight.
3, determine the colour, white is the regular colour, if you are just a dealer, white is the best choice.
4, the choice of manufacturers. The factory is larger, has its own R & D team, and through the third-party certification body certification of the factory, more worthy of cooperation.
