model electronics general physics geography & working models math lab abacus place value allotting base ten block board game circle cubes date & finance fractions geometry items identities maths kit maths theorems measurement number concept number crunching pattern block time trigonometry optical instruments...
model electronics general physics geography & working models math lab abacus place value allotting base ten block board game circle cubes date & finance fractions geometry items identities maths kit maths theorems measurement number concept number crunching pattern block time trigonometry optical instruments...
any shape deformation of the frame (during the sterilization take care to avoid the elastic strap touch the lens.) comfort: the design allows a long time of use, maximum transpiration, large field of view and use over the prescription glasses. key features: sterilizable in autoclave with steam & radiations...
polyester rich fabrics in compliance to the modern safety standards and product performance. hi-visibility clothing is a type of personal protective equipment (ppe) having high reflective properties. these fabrics have tendency to reflect maximum incident light and to re-emit invisible optical radiations...