Copper tungsten alloy plate is generally considered to be safe to handle & work with, as long as proper precautions are taken. It is important to note that copper tungsten alloy plates may generate dust or particles that can be inhaled, so it is recommended to wear a dust mask or respirator while working with the material. It is also important to wear appropriate eye protection and gloves to protect from any particles or debris. Additionally, to work in a well-ventilated area to prevent the inhalation of dust. Tungsten is a toxic heavy metal and should be handled with care if ingested, inhaled or the dust comes into contact with the skin, it can cause health hazards. It is highly recommended to take all necessary precautions such as using appropriate PPE, wearing gloves and goggles, and ensuring adequate ventilation when working with tungsten-based materials.