... 7.0mm Delivery Surface 1. Black: The surface with oxide; 2. White: That is use of chemical way of removing the ... the material color, glossy.Features 1.Toughness, light weight, 2. High property of acid and alkali resistance,3.Bear high ... , Medical Devices, Industrial, Mechanical part, fastener, rack, electrode materials, welding materials, etc.Yield Strength >=138MpaElongation >=20% ERTi-1 titanium wire