1.Why Tonstep Provide Soucing/QC Service . Team with 23-Year experience in Consumer Electronics . Strong supply chain resources . Rich Souring Experience for Supermarket and Famous Brand 2. What will Tonstep do for you -Sourcing Manufacturer -Price Negotiation -Managing Samples -OC Inspection -Logistics -Payment 3.Professional team will provide you professional Sourcing/QC service, Tonstep will be your branch office in China.