Our company , a musical instrument manufacturer with self-run right of import and export , mainly produce violins , violas , cellos , double-basses , rosins etc by hand over 20 years . All the wood materials originate from the virgin forest in China , dried in the open air 5-20 years . 90% of the products made in our company are exported , with reliable high-quality and ensured sound . Good sound of the instruments is our company's selling points .