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19 api 5l gr 42 52 carbon steel pipe products are offered for sale by suppliers on Alibaba.com, of which seamless steel pipes accounts for 84%, welded steel pipes accounts for 10%, and other steel pipes accounts for 5%. A wide variety of api 5l gr 42 52 carbon steel pipe options are available to you, such as fluid pipe, oil pipe and boiler pipe.You can also choose from hot rolled, api 5l gr 42 52 carbon steel pipe,As well as from round, square api 5l gr 42 52 carbon steel pipe, and whether api 5l gr 42 52 carbon steel pipe is 1%, 5%, or 10%.