Established in Taiwan, 1993
With over 95% of the production in-house, backed by over three decades experience in manufacturing and exporting.
R&D department develops several new designs and inventions for patent application every year.
In-house engineers constantly invent new technology and equipment to upgrade our products.
All measuring products conform to CE MID Directive Class I & Class II standards since 2007.
EEC Class I & Class II standards since 1997 in Germany.
Quality is not just a slogan at Top-Long, it is our foremost policy. Since 2003, Top-Long has been certified with ISO9001:2015.
Quality checks are made along the production process, every step of the way.
Our products are being distributed to more than 30 countries worldwide.