德国Eltra www.eltra.org 
ELTRA的首台碳硫分析仪在20世纪80年代问世。 ELTRA成立之初就以最优的性价比为企业宗旨。今天仍然保持这一理念。现ELTRA在世界范围内已拥有近千家客户，并且还在逐年稳步增长。在世界范围内巩固老市场的同时也开发了许多新市场，现产品已成功进入中国、美国、波兰、印度以及西欧一些国家。氧、氮和氢分析仪的市场份额增长迅速。涉及钢铁、汽车、采矿和航天工业等多个行业。
2012年Verder 收购Eltra 

In the early 1980`s the development of its first Carbon and Sulfur Analyser let to the creation of ELTRA. Initially ELTRA`s objective was to offer high quality products at affordable prices. This still remains the foundation of the ELTRA policy today.
Proof of the success of this policy is the hundreds of satisfied customers worldwide. With the creation of new levels of performance to price ratios ELTRA`s World market share has rapidly increased. 
The introduction of Oxygen, Nitrogen and Hydrogen analysers has meant year by year ELTRA has entered new markets in many different countries.
The steel, automobile, mining and aerospace industries, among others, are all custumers of ELTRA.