size :For example: M21 x 27 x 0.3 (internal diameter21mm s/iexternal diameter 27mm x thickness0.3mm)
surface treatment
Intended for the general use under the head of a bolt or nut in order to provide a smooth bearing surface.
وصف
Material :304 stainless steel
Name :Waveform washe
surface treatment
size :For example: M21 x 27 x 0.3 (internal diameter21mm s/iexternal diameter 27mm x thickness0.3mm)