The four-sided steel is made of stainless steel after being treated by a special thermonuclear process and stretched by professional equipment. A perfect consumable for dismantling automobile windshields. Simple operation, strong passing ability, suitable for various models, reducing secondary damage to the car (not easy to damage the finish), protecting the customer's car, making professionals more professional and greatly reducing the labor of dismantling the windshield. Intensity and difficulty simplifies complex work. The square steel is a square steel with a single strand 0.64x0.64. Very sharp. Because it was difficult to buy on the market, even if it was purchased at a high price, people engaged in the automotive glass industry were a little uncomfortable with use and felt too hard. , In fact, this is a conceptual error: there is no sharpness if it is not hard, and only when it is sharp can it be pulled sharply upwards. Be careful not to move too fast when using it. It is easy