Galvanized water pipes have two production methods: hot dip galvanized and pre-galvanized. The amount of zinc on hot dip galvanized water pipes is thicker, and it is more corrosion-resistant. Customers need to buy them according to their actual use.
The source of temperature for heat insulation is light. The strong light transmission ability during the day allows the walls, the ground, and the branches of the crop to absorb heat. At night, there is enough heat to release to the interior space. Treatm
The length of the PO film's service life is related to the anti-aging additives added in it. The more it is added, the longer the service life and the cost will increase.