... 2. 4 running lines 3. Full range of steel gratings Wanjie ball joint handrails are well featured by ... widely used for Power plants, chemical plants, oil refineries, steel mills, paper mills, mechanic plants, cement plants, municipal engineering ... (38.1)26.8(32.0)Notes:1.Carbon steel's size is in front of the bracket ... four kinds as 1000,1200,1500,2000mm.4.Steel tube's size:subject to the design drawings ...