Probe domestic switch needle KG-300K needle head diameter is 3.0mm normally open switch needle
Photocoupler

Photoelectric switch working principle diagram

Photoelectric switch working principle diagram

Oil Free Lubricated Air Motor

Oil Free Vane Air Motor,Oil Free Vane Pneumatic Motor,Oil Free Lubricated Air Motor,Stainless Steel Air Vane Motor

RUDONG HONGXIN MACHINERY CO.,LTD , https://www.rdhxmfr.com