aatc.tw  
Specialist in Acoustic Components  
 

 

 
 
 
About UL

 

Underwriters Laboratories


UL is the trusted source across the globe for product compliance. Benefiting a range of customers - from manufacturers and retailers to consumers and regulating bodies - wee tested products for public safety for more than a century.

And now, we can offer one of the conformity assessment industry broadest portfolios of capabilities and certification marks. Our unique mix of local expertise in global markets and deep industry knowledge helps bring safer products to markets faster than ever before.

http://www.ul.com/