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Feature: Technical delivery conditions are performed to GB/T 8163-1999.or other corresponding international standard. Delivery length usually is from 2 to 10.5meter. Straithtness: WT≤15mm 1.5mm/m WT 15~30mm 2.0mm/m Final supply conditions: cold ...

Feature: Straightness : A 0.3:1000 B 1.0:1000 C 1.5:1000 normal length : 2 000mm-6 000mm weight tolerences: per one ±10% 10t ±7.5% Surface quality: max decipt depth≤0.20mm

Techical delivery conditions are according to GB/T 3639or DIN2391. Materials are depended on different grade. Sizes &tolerances 4~30 ±0.10 32~40 ± 0.15 Final supply conditions: BK BKW BKS GBK NBK Normal length :2 ...

Feature: Square steel tube: D-1 Rectangular steel tube; D-2 Oval steel tube: D-3 Flat oval steel tube: D-4 In&Ex Hexagon steel tube D-5 Trapezoid steel tube with right angle: D-6 limit ...