Qingdao Todo Rubber invested more than RMB 200,000 built a full set of advanced laboratory to control the quality. From the beginning of business, we are very attention to quality, now it has help us win more than 20 countries customer. We test all materials and products, national standards and customer-specific requirements or with third parties. For example, we can test these properties of rubber parts: hardness, density, tensile strength, elongation, brittleness temperature, heat aging, compression set, ozone resistance, corrosive, low-temperature flexibility, dimensions, compression load, abrasion resistance. And our engineers have more than 35 year experience in rubber and plastic field, our chief engineer worked for China Northwest Rubber and Plastic Institution and engaged in the R&D of rubber property & content design. We also cooperated with Qingdao University of Science &Technology. And we have long terms cooperation with Third part testing, like SGS, API, etc. We are able to do RoHS, FDA, WPA, REACH, UL testing for customers..