FAQ - E-TAY Industrial Co., Ltd.

Company Profile
- Company Profile
- R&D
Product
New Product
News
FAQ

0

Close

Your shopping cart is empty

0 Items

Check out

View and edit your shopping cart
Language

English 繁體中文日本語 Spanish

Company Profile
- Company Profile
- R&D
Product
New Product
News
FAQ

Close

Low vision AID specialist Make Tiny Be Huge

FAQ

Home / FAQ

Aug 20 2019

Will magnifier work when touching a page?

Jan 30 2015

What is Fresnel Lens

Mar 02 2015

Fresnel Lens: How Does it Do Magnify?

Jun 20 2017

Advantages of Fresnel lens

Dec 27 2016

Fresnel Lens Diagram

Dec 21 2016

What is the relationship between diopter and magnification of a magnifying lens?

Sep 20 2017

Why a large lens has a lower magnification power?

Sep 20 2017

Differences Between A Magnifier and A Reading Glasses

Sep 05 2017

How To Choose A Good Magnifying Glass

Dec 27 2016

How to calculate the magnification

02-27092137

02-2709-8278

12F., No.137, Sec. 4, Xinyi Rd., Da'an Dist., Taipei City 106, Taiwan (R.O.C.)

etay@ms4.hinet.net

Designed by GTUT
Site Map
Privacy Policy