a character forging framework gate letter metal metallic type acetylene acetylene torch arcing display gloves making manufacturing metal framework protection protective repairing safety security shield sparking sparks strength welder welding worker workman cable current distribution electrical electricity England english gantry Great Britain iron power pylon steel tower balance blue build buildings cabin concrete construct counterweight crane cranes frame heavy lift sceleton skies sky bar bars building construction wire wires angle-iron angled angles background bolted bolts braced bracing building-construction building-site building-work color coloration colors colour colours connected connecting constructing frames house joined light metalwork New open preliminary-framework reinforced reinforcements reinforcing roof roofing secure shadows solid space spacious strong sunlight trusses unfinished galvanised galvanized ribbed ribs above abstract angle architectural architecture ceiling colored coloured framed glass height high linear lines metal-framework metal-work perspective perspectives shaded shaped shapes silhouettes sky-light skylight skylight-windows structure structured style visibility visible window window-frame windows