Carbon karfe bututu samar hanyoyin (1) sumul karfe bututu- zafi-birgima shambura, sanyi kõma shambura, extruded tube, saman tube, sanyi birgima tube (2) welded karfe bututu (A) bisa ga tsari- baka welded bututu, lantarki juriya. welded bututu (high-mita, low mita), gas bututu, tanderun waldi ...
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