顺泰国际appSuccess or failure is decided by product quality. Since the beginning point, Duolun has been devoted itself to the constant improvement of product quality and insisted the quality policy of “top quality, high efficiency”, it continuously modifies and consummates manufacturing equipment and technology to ensure the customers’ on our products. 

The company has completed general (special) manufacturing equipment of 152 sets and strictly controls the procedures from raw material incoming to finished product ex-factory and raise the zero defaults operation time of products. It also carries out international quality system and trade standard requirements during production and guarantees the processing quality of semi-finished products. Each step adopts advanced technical facilities, which strictly controls the product manufacturing quality.