As a Bisphera user, I suggest you change the cutting tools more frequently ( better after 8000~10000 cuts ).
Type: Posts; User: ALLENSIUKK; Keyword(s):
As a Bisphera user, I suggest you change the cutting tools more frequently ( better after 8000~10000 cuts ).
Nylon material used in frames or lenses is actually a material made in Switzerland ( EMS ) called TR90 ( Grilamid TR ). It was used to make sun lenses in around 1999 by a company in Hong Kong. ...