Is compress spring tested before shipment?
2020-10-18
The Pre-Shipment Inspection (PSI) is one of many types of quality control inspections conducted by YUAN SINE SPRING ENTERPRISE CO., LTD. This inspection is done according to standard QC Test, or based upon customer requirements. Samples are selected and inspected for defects at random, according to these standards and procedures. For us, Pre-Shipment Inspection is an important step in the quality control process and is the method for checking the quality of compress spring before they are shipped.
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YUAN SINE SPRING offers one package service of motor spring for markets both at home and abroad. We are a China-based enterprise that develops rapidly in this field. YUAN SINE SPRING focuses on providing a variety of custom torsion springs for customers. Electrical insulation and isolated power supply have been taken into consideration when designing this product. For example, the illuminant is isolated from the power source, which helps to prolong the work life of the product. The product has the advantages of great strength and elasticity. The product has good performance in protecting users' eyes. Without frequent flickering, the product will not cause visual fatigue or shortsightedness or even dizziness. The product does not require any maintenance.

We will integrate environmental concerns into our business strategy. We take environmental initiatives as a way of pollution prevention, such as introducing efficient manufacturing machines and adopting more reasonable supply-chain management.

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