... 3.Material:Adopting the high quality cold-rolle Heavy duty adjustable metal rack with high quality Advanced design idea,clever conception ... :Cold rolling steel SPCC DC01,ST12,Q195l 2,Beam adjustment:The beam levels are adjustable l 3. Procedure: Moulding+ Acid ... + Powder coat+ Polymerizationl 4.Finishing:Epoxy-Polyester Coatingl 5.racking color:many colors are available such as orange,blue and ...