4 inch waterproof outer magnetic circular car and motorcycle amplifying loudspeaker horn

Brand name full-range, 4-inch speaker-iron 50000 units per month of supply a seaport Hong Kong Shanghai an example of support PackageCarton1. How do orders get placed?1) Please inquire and outline all of your requirements (total qty and package details).2) Quotation — a formal estimate provided by our experienced staff with all pertinent details.3) Verify the finished sample and any quotation-related information.Production — large-scale production.5) Shipping—by air or water.2. What payment arrangements do you employ?As f