Be careful, not always true what you are introduced to…
It happened to me many years before. We made a training for supervisors – all we keep listed with valid status reports of certificates.
One applied for a project with same Ex certificate. Client checked via contacting us. It has turned out to be fake…
Noone is happy…
Trust in a system which is traceable.
Keep up good work!
The design of the installation, the selection of equipment and the erection
The marking of combined products (assemblies) is identical to the marking of
A robbanásbiztos berendezés robbanásbiztonság-technikai megfelelése annak teljes egészére vonatkozik, beleértve a tömszelencét
One does Ex inspection on site. There might be of various scenarios.
arpadveress 
