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All raw material from Shanghai Baosteel
All incoming inspection and process controlled
Vacuum quenching and Vacuum tempering for heating
Raw materials and heat treatment greatly affect the quality and service life of short cylindrical roller. Our company insists on purchasing raw materials from Shanghai Baosteel, the best supplier of bearing steel in China, as our main raw materials. In addition, our company invested and established a vacuum quenching and tempering production line with good environmental protection in 2018, which is specially used for heat treatment of short cylindrical roller of our company, which greatly ensures the hardness uniformity and stability of the products, and improves the product quality and service life.
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