... 3.Material:Adopting the high quality cold-rolle Heavy duty adjustable metal rack with high quality Advanced design idea,clever conception ... DC01,ST12,Q195l 2,Beam adjustment:The beam levels are adjustable l 3. Procedure: Moulding+ Acid cleaning/or Sand cleaning+ Phosphating ... provide you with high quality and competitive price. 1. Doors open to 180 degree 2.Fit for school,office,factory,staff ...