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7 step test block
Material:1018 steel
step size:20 x 20 mm
Thickness:5mm,12.5mm,20mm ,27.5mm,35mm,42.5mm,50mm
with certificate and suitcase
material | step thickness | type |
1018 steel | 5mm,12.5mm,20mm ,27.5mm,35mm,42.5mm,50mm | mm type |