API 5L ọkpọkọ bụ carbon ígwè ọkpọkọ eji maka mmanụ na gas nnyefe, ọ na-agụnye ọkpọkọ arụpụtara na enweghị nkebi na welded (ERW, SAW).Akụrụngwa na-ekpuchi API 5L ọkwa B, X42, X46, X52, X56, X60, X65, X70, X80 PSL1 & PSL2 dị n'ụsọ mmiri, oke mmiri na ọrụ utoojoo.API 5L ụkpụrụ mmejuputa iwu...
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