BISON is a manufacturer with a 20,000 square meter factory, 150 employees and an annual export value of $54 million. The business scope includes a generator, water pump, pressure washer and engine. Bison has obtained many certificates, such as ISO-9001, CE, Euro-5, Noise, ROHS, SASO, and so on. All our products come with 500 hours warranty and more than 40 after-sales staff 24h online to help you solve the problem.