Who to pay the freight of compress spring sample?
It depends on the value of the sample. Generally, YUAN SINE SPRING ENTERPRISE CO., LTD will send free compress spring sample but the freight is charged by you. We always work with the most reliable courier company to deliver samples at an affordable price. Considering the long-term relationship development, we generally send free sample to customers with our good faith.
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Established years ago, YUAN SINE SPRING is a leader at the forefront of designing and manufacturing metal spring in China. YUAN SINE SPRING focuses on providing a variety of custom springs for customers. YUAN SINE SPRING extension springs is manufactured by adopting the following methods: injection molding, compression molding, and extrusion which require highly accurate single or multi-cavity molds. As a mechanical part, it uses elasticity to work. As one of the featured products, this product is well received by users thanks to its superior optical quality, improved heat dissipation capacity, and most importantly, its glare-free capacity. The product does not require any maintenance.

Regarding our efforts to promote sustainable development, we are not only responsible for clients, but also responsible for society, the country, and the future. We will make our business activities and production more sustainable.

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