1、Sight English called riflescope. Over
To use in low light situations, or on the far
Distance> of the objects used when targeting
. Developed to target this mirror is divided into
Categories: type telescope sight (Tele
riflescope), Collimating mirror (
Collimating riflescope), reflection
Type Sight (Reflex riflescope)
2、Rotary Vane Vacuum Pump as Vacuum Pump
A kind of simple structure, easy operation,
And easy maintenance, suitable for various industrial
Vacuum applications
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