Place of Origin:
Zhejiang,China
Brand Name:
TORICH
Certification:
ISO9001,ISO14001,TS16949
Model Number:
EN10305-2
Steel Grade/Steel Material:
 E155 E195 E235 E275 E355
 
 Delivery Condition:
 1 BK Cold finished(hard)
 2 BKW Cold finished(soft)
 3 BKS Cold finished and stress-relieved
 4 GBK Annealed
 5 NBK Normalized
 
 Size Range:
 O.D.:6-350mm
 W.T.:1-35mm 
 L:max12000mm 
 
 Characteristic:
 Good concentricity
 Good OD and ID tolerance
 High precision
 Stable quality
 Smooth roughness
 
 DOM Steel Tube Production Process:
 Raw material → Incoming inspection → Cutting → Heating → Piercing → Hammering →Pickling → Cold-drawing → Heat treatment → Physical chemistry test → Straightening → Ends cutting → Final inspection → Bundling →Storage
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