Southern Region serves American Kocour Coulomb standard piece of Origin: United States Brand: Kocour Note: Division I KOCOUR agent, there are many agents in the name of the name of KOCOUR selling products now on the market, please our customers buy with caution! Item No. plating layer structure / substrate (substrate) coating thickness 3-50-D01 'STEP' / steel (double nickel) 600 μin (15.0 μm) 3-50-D02 'STEP' / Cu (double nickel) 600 μin (15.0 μm) 3-50-E01 EN / Steel (electroless nickel) 200 μin (5.0 μm) 3-50-S01 Cd / brass 500 μin (12.7 μm) 3-50-S02 Cd / Cu 500 μin ( 12.7 μm) 3-50-S03 Cd / steel 500 μin (12.7 μm) 3-50-S04 chrome / brass 200 μin (5.0 μm) 3-50-S05 Cr / Cu 200 μin (5.0 μm) 3-50- S06 chromium / nickel 20 μin (0.5 μm) 3-50-S07 chrome / steel 200 μin (5.0 μm) 3-50-S08 copper / steel 500 μin (12.7 μm) 3-50-S09 copper / zinc 250 μin (6.2 μm) 3-50-S10 Gold / Brass 25 μin (0.6 μm) 3-50-S11 gold / copper 25 μin (0.6 μm) 3-50-S12 Gold / Nickel 25 μin (0.6 μm) 3-50-S13 nickel / brass 500 μin (12.7 μm) 3-50-S14 nickel / copper 500 μin (12.7 μm) 3-50-S15 nickel / steel 500 μin (12.7 μm) 3-50-S16 Silver / Brass 500 μin ( 12.7 μm) 3-50-S17 silver / copper 500 μin (12.7 μm) 3-50-S18 silver / steel 500 μin (12.7 μm) 3-50-S19 tin / copper 500 μin (12.7 μm) 3-50-S20 tin / brass 500 μin (12.7 μm) 3-50-S21 tin / steel 500 μin (12.7 μm) 3-50-S22 tin / steel 30 μin (0.8 μm) 3-50-S23 zinc / brass 500 μin ( 12.7 μm) 3-50-M01 chrome / nickel / copper matrix: 15.0μm copper nickel zinc chrome 0.5μm 5.0μm 3-50-M02 chrome / nickel / copper matrix: 0.5μm nickel chrome steel copper 15.0μm 5.0μm 3-50 -M03 chromium / nickel substrate: copper nickel chrome 0.5μm 15.0μm 3-50-M04 chrome / nickel substrates: steel chrome nickel 15.0μm 0.5μm over a "standard supply electrolytic film" details information about electrolysis standard piece if you the more interested in more detailed understanding of the relevant information and advice electrolysis standard sheet, please call Wu Sheng: 136 1959 Fifth Linger