QC Team :QC team with more Capacitor than 10 professional and technical persons. To ensure 100% products checking.Material: Strictly control of material using, meet international requested standards.Semi-finished products inspection: Product inspection before 100% finished.ProductionEnvironment Protection Device line test: With work team or data enRefrigeration Equipment gineer who will inspect machines and lines at fixed period.Finished Product Inspection: Quality and property test before products are packed and loaded.Sample Policy We are Glad to offer free samples to you.1). 2-4 days for single items (our packing)2).7-10 days for OEM samples.3). WelcoBoiler & Furnace me to present your own design ideas, artwork.Contact TimelyWe will reply your email or fax within 24 hoursYou can call us at any time if thereInverter is any question on our production.