... plant, waterworks, gardens, municipal roads, airports and wharfs. 2) Carbon steel’s size is in front of the bracket in above ... table and stainless steel’s size is in the bracket. 3) Rail height: ... 1,200 mm. 4) Column spacing: mainly four kinds as 1000mm,1200mm,1500mm,2000mm. 5) Steel tube's size: subject to ... )33.5(38.1)26.8(32.0) low carbon steel tube ball joint railing