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49303 alloy structural pipe products are offered for sale by suppliers on Alibaba.com, of which seamless steel pipes accounts for 54%, welded steel pipes accounts for 12%, and stainless steel pipes accounts for 10%. A wide variety of alloy structural pipe options are available to you, such as fluid pipe, oil pipe and boiler pipe.You can also choose from round, square and rectangular alloy structural pipe,as well as from hot rolled, cold rolled, and cold drawn alloy structural pipe, and whether alloy structural pipe is 1%, 5%, or 10%.