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By certification 
Model No.: 11004
Name: Wave Gravity Indicator
Color: Matt Black Cover, Silver indicator.
Materials: Aluminum / Bakelite
Feature: Good looking and accurate indicating and durability, mechanical structure.
Clockwise or counterclockwise rotation to increase for choice.
Specification: Axle hole diameter plus outlook Diameter and ratio and direction/ rotation for choice as below:
1) 10d *85 D with 5 ~100 ratio and I or E ;
2) 12d *125 D with 5 ~100 ratio and I or E ;
*** Customized size, pls contact with us for discuss.
More information, pls feel free to view our webiste: http://www.zgdingye.com, or contact with us by email: dy-ft@zgdingye.com.
Name: Wave Gravity Indicator
Color: Matt Black Cover, Silver indicator.
Materials: Aluminum / Bakelite
Feature: Good looking and accurate indicating and durability, mechanical structure.
Clockwise or counterclockwise rotation to increase for choice.
Specification: Axle hole diameter plus outlook Diameter and ratio and direction/ rotation for choice as below:
1) 10d *85 D with 5 ~100 ratio and I or E ;
2) 12d *125 D with 5 ~100 ratio and I or E ;
*** Customized size, pls contact with us for discuss.
More information, pls feel free to view our webiste: http://www.zgdingye.com, or contact with us by email: dy-ft@zgdingye.com.