HSS Annular Cutters with TiAlN Coating, at 90Rc hardness, are the state-of-the-art in holecutting technology. HSS Annular Cutters with TiAlN Coating, at 90Rc hardness, are the state-of-the-art in....
We are Shenzhen Derunda Optoelectronics( Technology) Co., Ltd., which is a high-tech manufactory headquarted in Shenzhen China with offices in Beijing and Tianjin China, specializing high-power LEDs,....