MGMT
Congratulations
Recording the follow-up to your critically-acclaimed debut album has to be a nerve-wracking affair. As a band, do you go with the same sound/formula you used on the first record? On MGMT's sophomore album Congratulations, they successfully manage to do both.

Petra Engineering Industries has been approved by Lloyd's Register Quality Assurance according to the following Quality Management System: BS EN ISO 9001: 2000, which is applicable to design manufacturing and associated servicing of Heating Ventilation, Air Conditioning and Refrigeration equipment.
The CE mark certifies that Petra's products conform to the directive based on the principles of the Global Approach. It symbolizes Petra's has verification that the product conforms to all applicable EU directives and has been the subject of the appropriate conformity assessment procedure by Lloyds Register. Petra products comply with Machinery Low Voltage, and Electromagnetic Compatibility Directives.
The Certification of Electromagnetic Compatibility Directive (EMC) testing and conformity assessment through TUV Product Service emphasizes special product properties such as safety, quality, durability, environmental compatibility, and conformity to standards.
Petra's products are UL and ETL listed according to the 1995 Heating and Cooling Equipment standard, which requires the product to be of high quality, safe for the user, and is a requirement for the US market.