[Class : 37] Roofing, Roofing Contracting ,Roofing Maintenance, Roofing Repair, Roofing Services, Roofing Installation, Roofing Repair Services, Roofing Maintenance Services, Maintenance Of Roofing, Repair Of Roofing, Insulation Of Roofing, Installation Of Roofing, Scaffolding, Installation Of Building Scaffolds, Scaffolding Construction, Assembling Of Scaffolding, Scaffolding Repair, Scaffolding Erection, Pipeline, Pipeline Insulation , Pipeline Construction, Servicing Of Pipelines, Installation Of Pipelines, Construction Of Oil Pipelines, Installation Of Oil Pipelines, Installation Of Gas Pipelines, Furniture, Furniture Repair, Furniture Maintenance, Furniture Installation, Installation And Repair Of Fitted Furniture, Construction, Construction Planning, Commercial Construction, Residential Construction. Infrastructure Construction, Industrial Construction; Angle Irons, Bars For Metal Railings, Cables Of Metal, Ingots Of Common Metal, Iron Slabs, Iron Wire, Joists Of Metal, Scaffolding Of Metal, Sheets And Plates Of Metal, Steel Wire.[Class : 6] Tmt Bars, Steel Alloys, Steel Buildings, Steel Masts, Steel Pipes, Steel Sheets ,Steel Strip, Steel Tubes, Steel Wire, Unwrought Or Semi Wrought Sheets, Steel Fabrications, Rerolled Steel, Plated Steel, Steel Chains, Stainless Steel, Common Metals And Their Alloys, Steel Grating, Steel Beams, Steel Balls, Steel Chimneys, Metal Building Materials, Transportable Buildings Of Metal; Common Metals And Their Alloys, Metal Building Materials, Transportable Buildings Of Metal; Door Casings Of Metal; Casement Window Of Metal; Windows Of Metal; Window Frame Of Metal; Window Frame System Of Metal; Metallic Frame For Sliding Door; Window Stops Of Metal; Window Sashes Of Metal; Fittings Of Metal For Door; Ironmongery, Small Items Of Metal Hardware, Door Fittings And Window Fittings Of Metal, Ironwork For Doors And Windows, Door Handles Of Metal, Hinges, Bolts, Pegs, Nails, Bolts, Stops For Bolts, Screws, Gongs Of Metal, Slides; Framework Of Metal For Building; Sills Of Metal, Expansion And Junction Joints Of Metal, Ground Sill Of Steel For Foundations; Metal Windows And Doors; Component Features Of Metal Windows And Doors, Namely, Metal Door Frames, Metal Panels And Weather Strips; Factory Construction, Harbour Construction, Installation Of Doors And Windows, Machinery Installation, Pipeline Construction, Underwater Construction, Warehouse Construction.