From August 19th to 23rd, 2011, AMT (China) Co., Ltd. President Dr. Weinhold and CEO Dr. Wang Yang participated in the triennial “Sixth China International Tribology Conference” held in Lanzhou, China . At the conference, I made a special invitation report titled “Surface analysis and wear volume modeling”. As a specially invited speaker and exhibitor, he conducted technical and academic exchanges with many Chinese and foreign experts.