Treatment of metal tubular products, namely, furnace tubes, reformer tubes, heat exchanger tubes, waste gas heater tubes, line pipe and [ downhole tubes ] for wells and production vessels, [ sulphur condensors and ] piping used in oil and chemical production and [ power generation and ] wrought metal products, namely, bars, rods, plates and sheets, [ panels,waterwell panels, ] and wire screens [ and metal castings ] by adding aluminum or aluminum and silicon corrosion and erosion preventive diffusion coatings

'ad':61 'aluminum':62,64 'bar':46 'cast':59 'chemic':36 'coat':72 'condensor':29 'corros':67 'diffus':71 'downhol':21 'eros':69 'exchang':12 'furnac':7 'gas':15 'generat':40 'heat':11 'heater':16 'line':18 'metal':3,43,58 'name':6,45 'oil':34 'panel':51,53 'pipe':19,31 'plate':48 'power':39 'prevent':70 'product':5,26,37,44 'reform':9 'rod':47 'screen':56 'sheet':50 'silicon':66 'sulphur':28 'treatment':1 'tube':8,10,13,17,22 'tubular':4 'use':32 'vessel':27 'wast':14 'waterwel':52 'well':24 'wire':55 'wrought':42

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