calcium carbide stone 50-80mm inner Mongolia 295L/kg 100kg drum Stone Manufacturer Factory Price in China calcium carbide stone price indiaProduct Name calcium carbide stone 50-80mm inner Mongolia 295L/kgMaterial Lime-Stons and CokeColor GreyStandard GB 10665-2004Grade 285L/KG,295L/KG,305L/KGBrade CNMIPackage 50kg/100kg Iron DrumApplications Acetylene GasCertificate ISO 9001,SGS, BVSize 1-4mm,4-7mm,7-15mm,15-25mm,25-50mm,50-80mm,80-120mm.MOQ 1*20GPLead Time Around 7 Working days after confirmed the payOEM&ODM Accept