... Carbide(CaC2) Size:1-4mm,4-25mm,25-50mm, 50-80mm,80-200mm Gas yield:285L/KG-305L/KG Packing:50kg ... Carbide(CaC2)Size:1-4mm,4-25mm,25-50mm,50-80mm,80-200mmGas yield:285L/KG-305L/KGPacking:50kg&100kg&200kg ... Carbide(CaC2)Size:1-4mm,4-25mm,25-50mm,50-80mm,80-200mmGas yield:285L/KG-305L/KGPacking:50kg&100kg&200kg ... am alleen , my phone is 86-15822331504 calcium carbide 50-80mm