1.OEM is acceptable 2. smooth welding technique,good quality; 3.Competitive price and stable market share; 4.Customer's desig Brand product,high quality,competitive priceDry powder:0.5kg,1kg, 2kg, 3kg, 4kg, 5kg,8kgFoam/water fire extinguisher: 6L,9L,Co2:2kg 5kg 7kg