Sheetray Inspection Service Co., LTD is located in Shanghai, the coastal and center city of China. Sheetray is one of the few professional companies that provide one-stop service for metal products exclusively. we provides services of OUTSOURCING CONSULTATION, FACTORY AUDIT, DURING-PRODUCTION INSPECTION & PRE-SHIPMENT INSPECTION for our global clients who are importing or about to import different metal products from China factories. These metal products include RAW MATERIAL, METAL FABRICATION, ...