... :2008 quality systems 2.4 running lines. 3. Delivery:7-30days 4.Availability:20,000tons/year Wanjie ball-joint handrails are well ... , excellent anticorrosion performance after galvanized surface treatment. Application: widely used for Power plants, chemical plants, oil refineries, steel mills, paper mills ... size:subject to the design drawings confirmed by both parties. handrails for outdoor steps