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Long Work Life Ndb Tungsten Wl10 Wl20 Cucrzr OFC Spot Weld Tips for Auto Parts. NDB Technology Bonding: Seamless bonding without solder, connection strength >130Mpa. Extended Service Life: Work shots up to 50,000 times, reducing replacement frequency. Customized Dimensions: Diameter and length are fully customizable to client needs. Superior Heat Dissipation: Continuous cooling design reduces thermal load on tips. Diverse Material Options: Available in W, WL10, WL20, TZM, Mo, CuCrZr, and OFC. High Conductivity: Stable conductivity ensures efficient resistance welding. Auto Parts Application: Ideal for wiring harnesses, motors, and brake systems. Factory Direct Source: Production starts from raw APT powder meeting global standards.