Factory Supply---Tsis muaj Middleman---OEM/ODM muaj

R & D

(1)

R & D ntawm cov khoom siv hmo ntuj pom kev nti

(4)

R & D thiab debugging ntawm binoculars fuselage

(3)

Kev tshawb fawb thiab kev tsim kho ntawm lub tshuab tsom iav lens txheej

(2)

Lens standardization kev tshawb fawb thiab kev tsim kho

(5)

Kev tshawb nrhiav thiab kev tsim cov cuab yeej abrasive rau lub cev tsom iav

(6)

Kev tshawb fawb thiab kev loj hlob ntawm cov me nyuam lub tsom iav raj

(7)

R & D ntawm cov txheej txheem ntau lawm

(8)

Kev tshawb nrhiav thiab kev tsim kho cov qauv ntsuas qhov muag