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Shanghai Yifeng Trade Co., Ltd. Yifeng is a manufacturer of steel rail with well-equipped testing facilities and strong technical force. With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in railway and crane other industries. Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs. We welcome new and old customers from all channels to contact us for future business with long relationships and mutual success!公司档案