[ 2019-8-28 ]
ISO 9001 annual surveillance audit[ 2019-8-28 ]
Party member education[ 2018-8-2 ]
The president of HUASHI GROUP attend TPCO’S CONFERENCE FOR KEY CUSTOMERS IN 2018[ 2018-7-9 ]
Chen Leiming, vice president and secretary general of the China metal materials circulatio[ 2018-7-5 ]
Introduction to material differentiation of straight seam steel pipe[ 2018-7-5 ]
Analysis of large caliber seamless tube structure and its chemical activity[ 2018-7-5 ]
Inspection of starting point and end point of large-caliber thick wall seamless steel pipe[ 2018-7-5 ]
Weld treatment of spiral steel pipe
