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Q10747
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How the pipes are specified?
Q10748
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Which type of welding technique is used to make welded joints in all positions for pipes of lesser thickness and different sizes?
Q10749
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Which type of welding technique is applied mainly to pipe joints in the overhead and vertical positions?
Q10750
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What type of material used to make gutters and cornices?
Q10751
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What unit is used at the roof edge together run off?