Founded in 2012, the bjc network was officially renamed the bjc used vehicle in 2014 and is part of wenzhou city's meltai used car trading company, inc., an earlier vertical used car booking, second-hand car trading, second-hand car transfer and second-hand payment as a platform for e-commerce. The o2o model, which combines the internet with offline services, addresses the difficulties encountered by users in finding second-hand cars and second-hand cars. The bjc second-hand car incorporates hundreds of used-cars in weinzhou as partners, and provides the internet-based normative and objective quantification of these second-hand cars, allowing users to quickly find a suitable second-hand car, using a strong call centre passenger service team, to improve/enhance the flow of online and off-line processes. The bjc is focused on serving individual users, with a professional team of second-hand vehicle evaluators, 249 professional tests, excluding non-personal vehicles, accident vehicles, water-infested vehicles, fire trucks; transparent, non-discretionary transactions allow ordinary users to buy high-quality used vehicles up to 8 years/150,000 kilometres at fair market prices. At the same time, a free guarantee of 10,000 kilometres is provided to all car buyers, which is available for a period of 14 days, leaving the user free of any concern and able to purchase and use the vehicle properly. Over a period of just over a year, the bjc second-hand car reached hundreds of entrepreneurs with a deep cooperative interest, met and exchanged with each other, as well as a later-stage headquarters study, analysis and screening of local market conditions and the partner's own qualifications, which led to the identification of a partnership of more than 10 partners in urban and county-level municipalities in zhejiang, jiangsu, shanghai and other provinces. The bjc helps buyers to deal directly with sellers face to face. The direct-sale model, which removes the middlemen's link, transfers the price differentials originally generated by the middlemen's layers to the buyer and the seller, achieves a win-win situation of "sellers, buyers and provinces". In order to improve/enhance the fluid experience of both buyers and sellers, the melon used car restricted the origin of the car and provided that the seller's vehicle on the platform could only be a personal used car up to 150,000 kilometres in 8 years. At the same time, the melon used vehicle ensures that each of the vehicles on the platform is supported from the source by rigorous testing by the 5-d 3d system。