Product Description
technical specification:
1. product is high precision cold drawn ERW tubes;
2.Dimension precision is less than IT12, roundness is less than 0.3-0.6% within nominalsize;
3.Eccentricity is within 3%
4.Straightness per meter is less than 0.5,camber over whole length is less than 0.5*L;
5.Surface roughness is Ra1.6-6.3.Maximum length is 16000mm
6.Delivery condition after cold drawn is +SR(stress relived)
| Payment Terms: | 30%T/T in advance,70%balance against copy of B/L |
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