... frame 1.CE,ISO9001:2008; 2.Standard structure; 3.High load capacity,high raliability, support frame1.Certificate:CE ... fastenerStandard, LedgerStandard, Leger, DiagonalForce styleFriction, ShearAxial loadReliabilityFree frame node, diversity, low reliabilityFixed size component, steady ... 5T2.8TErection efficiency134Wastage rate10%5%2% ConclusionFlexible frame, low reliability, excessive material, huge ...