Longvin Technology Company, a professional powerbank manufacturer, is your one-stop ODM &OEM power banksupplier. We devoteinto research,development, production and marketingof portable powerbanks etc. for all kinds of digital devices even jumpstarter. During thedeveloping and expansion, after constantly adjustment andimprovement, we are out of too many common models, develop newfeatures private mould models,  unique models and aneffective quality-delivery controllability are both ourfocus.Longvin absorbsmany rich-experienced technicians and expert engineers, their over6 years R&D,OEM new moulds making, projects management, operatingexperience strongly assures our power solutionperfect and reliable.From idea to volume production, we supply our customersmore valued solutionand service.We rigorouslyimplement ISO9001, and other verifications CE, RoHS, FCC,etc., which ensurethe products high qualitys consistency andreliability. Farthest tosatisfy customer requirement, Longvin are allready for serving you!Welcome ODM and OEM!