... Wrench Electrophoresis Black1.Carbon steel, drop forged 2. Electrophoresis Black, European type, with scale3.Heat treatment 4.Durable,easy ... .W./PC(KG)HRCTORQUE (N.m)PCS/BOXPCS/CTNElectrophoresis Black Adjustable Wrench, in fine carbon steel, drop forged, ... for home first-class brands), national and international quality standard -Function: cushion grip, easy to handle, low maintenance cost, ...