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 Products——Steel trade
 

Steel trade parameters
Model specifications
 Implementation of the standards
Processing
1/2、3/4、1、2、3、4、
5、6、8、10、12、14、
16、18、20、22、24、
26、28、30、
GB9711.1、API-5L
ASTMA5313B、A106
Steel：
Q235 H40 Q345B
X42 X60 X52 J55
    Advanced high-frequency ERW Longitudinal welder and top-line ultrasonic flaw detection, and the first level, chamfering, pressure test, IF annealing, To provide a high standard of steel
 
 
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