Resistance welding - Vickers hardness testing (low-force and microhardness) of resistance spot, projection, and seam welds (ISO 14271:2017); German version EN ISO 14271:2017— 14 стр.
Resistance welding - Vickers hardness testing (low-force and microhardness) of resistance spot, projection and seam welds (ISO 14271:2011 + Cor 1:2012); German version EN ISO 14271:2011 + AC:2012— 16 стр.