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                            ASTM A795 Fire Protection Steel Pipe Grooved En...
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                            Oil and Gas Delivery Welded Steel Pipe
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                            Carbon steel pipe and galvanized steel pipe
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                            Astm A795 Sch10 Sch40 Fire Sprinkler Carbon Ste...
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                            ASTM A53 A36 Large Diameter Black Painted Welde...
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                            ASTM A53 1/2″ to 8″ Schedule 40 Bla...
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                            ASTM A53 Black Painted Welded Steel Pipe
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                            ASTM A795 Grooved Ends Fire Sprinkler Steel Pipe
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                            Ral3000 ASTM A795 Grooved Ends Fire Protection ...
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                            UL Certificate Fire Sprinkler Steel Pipe
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                            SCH40 Painted Welded Steel Pipe Beveled Ends