best grade calcium carbide manufacturer acetylenogen 1.best grade 2.new iron drum 3.high gas yeilid 4.with nitrogen sealed best grade calcium carbide manufacturer acetylenogen PRODUCTCalcium carbide / AcetylenogenSIZE4-7mmAPPEARANCEIndustrial products are gray, brown or...

100kg iron drum sealed with nitrogen calcium acetylide 1.high gas yield 2.new iron drum 3.with nitrogen 4.sealed package 100kg iron drum sealed with nitrogen calcium acetylide PRODUCTCalcium carbide / AcetylenogenSIZE4-7mmAPPEARANCEIndustrial products are gray, brown or...

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