... 2. Demension and surface treatment as customers demand 2013 Hot steel tube bending for office chair Feature Specifications 1. Material:iron,steel,stainless ... ,grinding etc5. Surface treatment:Zinc plated,power coated,chrome plated,hot-dip galvanized or others6. Packing:wooden case,pallet,strong box ... Welcome to contact us:Caoyline WuTel:86-0573-86887878 2013 Hot steel tube bending for office chair