1. The price of plastic shredder blades: Under the same material and process conditions, the price of plastic shredder blades is almost the same. Customers can first understand the market price of the raw materials used in the production of plastic shredder blades, and then compare the quotations of plastic shredder blade manufacturers. If the quotation is lower or slightly higher than the material price, it is supplementary.

2. Precision: The parallelism of plastic shredder blades is generally 0.03±0303 mm, and the thickness of the full length of the blade cannot exceed 0.03 mm. Only when such precision is achieved can a set of qualified plastic shredder blades be considered. After purchase, you can use measurement tools. First compare the errors at both ends of a single chip, and then measure the accuracy of the entire set of blades one by one, and then see if there are gaps at the joints, and feel it with your hands to see if it is smooth and without tentacles.

3. Production process: In addition to materials, it is the processing technology in the production process. In the production of plastic shredder blades, every process is very important, and more importantly, heat treatment. A set of qualified plastic shredder blades must be quenched in the furnace at least twice to achieve the same hardness inside and outside, tough but not fragile blades, wear resistance and durability.

4. Warranty: Under normal use, a set of qualified plastic shredder blades can be used for less than one or two years and more than three to five years. Therefore, you must request an after-sales guarantee and sign an agreement when buying.

The manufacturer of the plastic shredder blade promises to users that if there is a quality problem, it can unconditionally return and replace it. If there is no such commitment, the quality of the blade is difficult to be guaranteed.