we are a trading company mainly engaged in instruments and instruments, experimental equipment, machinery and equipment, hardware tools, chemical reagents, chemical raw materials, medical devices, building materials. our customers are distributed in various industries in china and the manufacturers we cooperate with are our partners. we jointly develop the market and jointly provide high quality products and good service to our customers. We have professional technical engineers responsible for after-sales service of products. Good products come from professional technology, good service comes from sincere attitude, we strive to make customers satisfied with every cooperation with us.