We thank you for visiting us. We want your experience on the site to be the best possible.
To access our services, you state that you are of legal age and that you have the legal capacity to act in accordance with your national law.
To access and navigate on the website, or to use the services therein, the express and complete acceptance of every General Condition is required, including the Particular Conditions set for certain promotions and the Policy of Privacy and Cookies, regarding the purposes of the data you provided us. We kindly suggest you to read them carefully.

1.- Legal Information

In compliance with Law 34/2002, of 11 July, on Services of the Information Society and Electronic Commerce, the identifying data of the owners of the Web Portal are:

(Hereinafter CETREN)


Home: Paseo de la Castellana 91, 10th floor
CP 28046
CIF: B85035251
Phone: 91 264 83 35




Home: Paseo de la Castellana 91, 10th floor
CP 28046
CIF: G28688331
Phone: 91 264 83 30


Access to implies the express acceptance of the User to these General Conditions of Use, which may be modified or replaced by the owner at any time and without prior notice.

2.- General Conditions of Use

The following General Conditions govern the use and access to the Website, which purpose is to be a gateway to CETREN AND LA ASOCIACIÓN, offering users the information, services and contents on the Web. Through the website, the User has access to information about specific products and services, tools and applications.
The data and information on products or services, prices and features or other relevant data offered through the website are made, provided and updated by Suppliers and third companies. CETREN AND THE ASSOCIATION are not, in any case, responsible for such data and information nor assumes any obligation thereto.
The User undertakes to make appropriate use of accessible contents, services, applications and tools, subject to the Law and these General Conditions of Use and, where appropriate, to the Particular Conditions as may be set to access certain services and applications, respecting at all times other Users.
In case of total or partial breach by the User of these General Conditions of Use, CETREN AND THE ASSOCIATION reserve the right to deny access without prior notice to the User.

3.- General Obligations of the User

The User, by accepting these General Conditions of Use, expressly agrees to:
– Not undertake action aimed at damaging, blocking, rendering useless, temporarily or permanently overloading the functionalities, tools, contents and/or the infrastructure of the website, so as to prevent its normal use.
– Keeping and maintaining the confidentiality of access codes associated with your User name, being responsible for the use of said personal and non-transferable access codes by third parties.
– To not introduce or make abusive or slanderous content, both of other Users and third parties outside CETREN AND THE ASSOCIATION.
– To not use any material and information on this Website for illegal purposes and expressly prohibited in these General Conditions of Use, as well as in the particular conditions that, where appropriate, are set for certain applications and/or utilities and that are contrary to the rights and interests of CETREN and LA ASOCIACIÓN, their users and/or third parties.
– Not offer or distribute products and services, or make advertising or commercial communications that are not requested to other Users and visitors of CETREN and LA ASOCIACIÓN.
The User shall be liable for all damages and losses of any nature that CETREN and LA ASOCIACIÓN or any third party may suffer as a result of breaching any obligation to which it is subject by virtue of these “General Conditions of Use”, or the law in relation to access and/or use of the page.

4.- Intellectual and Industrial Property.

The website, pages and information or elements therein (including texts, documents, photographs, drawings, graphic representations, among others), as well as logos, trademarks, trade names or other distinctive signs, are protected by intellectual or industrial property rights that CETREN and LA ASOCIACIÓN are authorized to use and make a public communication of their legitimate owners.
The User undertakes to diligently and correctly use the contents, in accordance with law, morality and public order. CETREN AND LA ASOCIACIÓN authorize the User to view the information contained in this website, as well as to make private reproductions (simple download and storage activity in their computer systems), provided that the items are intended for personal use only. In no case, will this mean an authorization or license on the property rights of CETREN and LA ASOCIACIÓN or their legitimate owners.
The User is not authorized to distribute, modify, transfer or make a public communication of the information on this Website for any other purpose and/or otherwise.

5.- Links.

Connections and links to third-party websites or websites have been set only as a utility for the User. CETREN and LA ASOCIACIÓN shall not be liable in any way for these or their contents.
CETREN and LA ASOCIACIÓN shall neither be liable for whatever arises from the existence of links between the contents of this site or contents outside of it, nor any other external content referred to in this website. Such links or mentions have an exclusively informative purpose and, in no case, imply the support, approval, commercialization or any relationship between CETREN and LA ASOCIACIÓN and persons or entities that are the authors and/or managers of such contents or owners of the sites where these are found.
The express and written authorization of site owners shall be necessary to make links to the website.

6.- Liability.

CETREN and LA ASOCIACIÓN do not guarantee a continuous access, or correct view, download or usefulness of items and information on the website that can be blocked, hindered or interrupted by factors or circumstances beyond their control or outside their control, or for whichever is produced by the existence of computer viruses on the Internet.
CETREN and LA ASOCIACIÓN shall not be liable for damages, losses, claims or expenses, produced by:
(i) Interferences, interruptions, failures, omissions, delays, blockages or disconnections, motivated by failing telecommunication lines or networks, or for any other reason beyond the control of CETREN and LA ASOCIACIÓN.
(ii) Illegal intrusion through malicious programs of any kind or by any means of communication, such as computer viruses or any other; (iii) Improper or inappropriate use of CETREN and LA ASOCIACIÓN website (iv) Security or navigation errors caused by browser malfunctioning or by the use of outdated versions.
CETREN and LA ASOCIACIÓN shall not be liable and in no case shall respond to users or third parties on acts of any third party outside CETREN and LA ASOCIACIÓN that entails or may involve performing acts of unfair competition or illegal advertising or infringement of intellectual and industrial property rights, business secrets, contractual commitments of any kind, rights to honour, personal and family privacy and image, property rights and all other rights of any third party by reason of transmission, dissemination, storage, provision, reception, obtaining or access to contents.

7.- Personal Data Protection.

You will find all the personal data processing policy in the Privacy Policy, which is part of these General Conditions but, for simplicity, we have set it in a separate document: Privacy Policy.

8.- Legislation.

This Legal Notice and its terms and conditions shall be governed and interpreted in accordance with Spanish Legislation. The user, by the mere fact of accessing the website or having the status of a registered user, irrevocably agrees that the competent Courts by default may hear any legal action arising from or linked to these conditions, or with the use of this Site or their navigation.
Should any clause or section in these General Conditions –which nature is not essential for their existence, be declared null or unenforceable, the validity of the remaining clauses shall not be affected.