... authority testing company, we can offer the test report to you depending on your requirement. ... oxide, etc. 6). We can offer test report of heavy element for our product per batch to ... or drawings of your products.Our products are get through salt spray test and ROHS test, they ... Zinc alloy, aluminium and other material as requestedSurface treatmentkinds of plating (Zinc, Nikel, Chrome, Tin, Ag); Painting ...