API 5L
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APISPEC5L-2012 Carbon Seamless Steel Line Pipe 46th edition
Mapaipi opanda msoko omwe amagwiritsidwa ntchito ponyamula mafuta, nthunzi ndi madzi kuchokera pansi kupita kumabizinesi amafuta ndi gasi kudzera papaipi.
Mapaipi opanda msoko omwe amagwiritsidwa ntchito ponyamula mafuta, nthunzi ndi madzi kuchokera pansi kupita kumabizinesi amafuta ndi gasi kudzera papaipi.