cheap chain link fence

The different spacing of the thorn rope is mainly in order to save costs to consider, because if they are too close, then obviously a little waste of resources, but the installation is too sparse will not work. Usually the bottom spacing is about 10cm, and the top is up to 20cm, this is because the higher the place is more difficult to climb over, usually more than one meter without the help of tools it is difficult for ordinary people to climb over, and the bottom because of the relatively tight can prevent personnel from drilling in the past.

The spring steel wire is made of high carbon and high quality carbon structural steel or carbon tool steel wire rod, and its chemical composition, gas content and non-metallic inclusion must be strictly controlled according to the use of the spring. In order to reduce the appearance of shortcomings and decarbonization layer, the consumption of rod billet to stop surface grinding, if necessary, but also stop peeling.

Canary cage is also known as hibiscus cage, jade bird cage. Can be made of nickel-plated alloy or bamboo, for the refined round, square or rectangular (breeding cage) bird cage. The top of the cage has two kinds of flat top and dome, and the bottom of the cage is closed with a bottom circle. The circular cage is about 33 cm high and 20 cm in diameter; The square cage is 24.7 cm long, 24.7 cm wide and 33.8 cm high. The spacing of the cage is 1 cm, and the diameter is 0.2 cm. Cage bottom NEED NOT BAMBOO, MAKE IT WITH PLASTIC BOARD, bottom plate CAN move, FACILITATE PULL OUT WASH. Two perches are placed in the cage, and a food and drinking pot is placed in the cage. The cage has a board at the top of the cage to change the bird’s habit of looking up at the sky.