... zinc alloy Size: 16mm, 19mm, 22mm,25mm,28mm details of curtain pole:1. material : iron, aluminum alloy , stainless steel, ... blister, shrink film, PVC box, plastic bag. details of curtain brackets:1. material : iron, zinc alloy, aluminum alloy2. ... blister, shrink film, PVC box, plastic bag.details of curtain rings:1. material : iron, plastic2.for rod in ... 'FCL, 50 days for one 40HQ metallic curtain Rods