Components: Nodes: GB/T 699 45 OR JIS G4104 Scr440 Bolts: GB/T 3077 40Cr 10.95S OR JIS G4104 Scr440 Nuts: GB/T Q235B OR JIS 3101 SS400 Flat end(cap) or Cones: GB/T 700 Q235B OR JIS 3101 SS400
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