The reasons why the prices of PE tarps on the market vary greatly

1. Different material quality: PE waterproof tarps produced by different manufacturers may use different quality raw materials, so there are differences in the durability, waterproof performance, UV resistance, etc. of the products, which affects the price.

2. Different production processes: The process levels of producing PE waterproof tarpaulins are different, which will affect the quality and performance of the product, and in turn affect the price of the product. Some manufacturers may use more advanced production processes to produce higher quality products, and the prices will be relatively higher. 

3. Brand influence: Well-known brands of PE waterproof tarpaulins usually have higher prices, because the brand effect will increase the value and market recognition of the product.

4. Different specifications and sizes: The prices of PE waterproof tarpaulins with different specifications and sizes will also be different. Generally speaking, the larger the area and the thicker the product, the price will be relatively higher.

5. Market supply and demand: The price of tarpaulin may also be affected by market supply and demand. If a certain type of tarp is in high demand and supply is limited, prices may rise accordingly.

6. Other factors: In addition to the above factors, the price of tarpaulin may also be affected by other factors, such as regional differences, sales channels, advertising, etc.

To sum up, although PE tarpaulins are similar in appearance, the price will be different due to factors such as material quality, production process, brand influence, specifications and size. When purchasing a tarpaulin, you need to choose the appropriate type and price range based on actual needs and uses.