... from your drawings, samples, or assist you with your design. Battery spring have single type,AA group type,AAA group type ... QC which insure the products' quality.Packing: Crate, carton, wooden case, pallet according to clients' request.Delivery TimeWithin 7-10 working ... TermsT/T, L/C,Western Union,.Our Products:Our factory: battery plate,battery plates,battery contact plate