... surface treatment 5. high speed steel Zhejiang Xinxing Tools Co.,Ltd (CHTOOLS)We are professional manufacture of cutting tools ... aluminium, cast iron, stainless steel and plastic. 5. The specifications from the Φ12mm to Φ65mm, depth of cut from25mm, 35mm, ... bridging, shipbuilding, machine manufacture and so on.Equipment Enterprise culture Some certificate The newest HSS with weldon shank annular core