Clever use of R lens

Tool microscopes generally have a circular contour lens, referred to as the R lens. It is a concentric circle and an arc engraved line marked with a series of different radius values. China's JX7, J19jA tool microscope R lens engraved with a concentric circle of 0.1 ~ 1.5mm and a standard circular arc of 0.1 ~ 50mm or 0.1 ~ 100mm. The R lens is mainly used to quickly solve the problem of on-site measurement of workpieces during production. Use the R lens to measure the arc radius, it must be the workpiece nominal arc radius is equal to the R lens standard arc engraving calibration value

Stainless Steel Roller Shutter Door

Using advanced 201 stainless steel sheet, precision roll forming production process.

User-friendly design, stylish,durable ,safe anti-theft ,lighting, ventilation ,aesthetic ,practical, thermal insulation and free adjustable ,anti-peeping.

Intelligent control, multiply driving modes.

Variety of colors and styles optional.

Providing a comprehensive,specialized system solutions as users different requirements.

Integrated protection and decorative features together,the best replacement of traditional theft network security replacement; flexible way open ways, supporting hand control, group control. The door could be your safe rescue channel when in emergency.

Stainless Steel Roller Shutter Door,Remote Control Roller Shutter Door,Stainless Steel Grille Roller Shutter Door,Electric Stainless Steel Roller Shutter Door

Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfhighspeeddoor.com