I-API 5L
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I-APISPEC5L-2012 Carbon Seamless Steel Line Pipe 46th edition
Ipayipi elingenamthungo elisetshenziselwa ukuthutha uwoyela, isitimu namanzi adonswa phansi ukusuka phansi ukuya embonini kawoyela negesi emabhizinisini ngepayipi.
