Technology introduction: raw material SS BAR are from Yongxing Special Steel and Shanghai Baosteel.
Process: piercing, cold rolling, cold drawing, bright annealing and other technologies.
Major features: high precision diamension, high cleanness of inside and good mechanical properties.
Major purposes: export abroad,auto parts, hydraulic system tubes, chemical industry, petrochemical industry and other fields which have high requirements on precision, finish, cleanliness, mechanical properties of steel tubes.
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