Umuyoboro wa API 5L ni umuyoboro w'icyuma cya karubone ukoreshwa mu kohereza amavuta na gaze, urimo imiyoboro ikorerwa mu buryo budasubirwaho kandi busudira (ERW, SAW).Ibikoresho bikubiyemo API 5L Icyiciro cya B, X42, X46, X52, X56, X60, X65, X70, X80 PSL1 & PSL2 ku nkombe, serivisi zituruka hanze.API 5L standar yo gushyira mubikorwa ...
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