All goods are produced under careful guidance of Sunfast Tianli's own engineers. Manufacturer's are keenly screened before they join the ranks of Sunfast Tianli's supplier base. Each and every shipment is inspected both during and after production and customers receive a full shipment inspection before receipt of goods.Sunfast Tianli holds and has access to virtually all testing facilities and laboratory equipment and generally tests goods according to the relative DIN, ISO or ANSI standard with a clearly defined AQL. Specific tests can naturally be provided to customers upon request.