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Our Process

There are 14 processes from raw materials to final packaging. Our quality control goes through the whole 14 processes. The dimension and property of the spring is under a strict standard of TB / T 2211-2010 and freight vehicle [ 2004 ] No. 342, and under an overall inspection of ISO9001-2008. Each batch of springs must be checked by the expert of Guangzhou Railway Group Co., LTD Zhuzhou vehicle supervision project department before delivery.


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