Welcome Bertao!
Glad you decided to join, as you can see this is a good place to learn & meet like minded hobbyists. Sure there are some topics that get side tracked, chaos & good spirited fun. Yet the core group are more than willing to assist in any research or model related topic.
Something about modelers from your area of the globe, they seem to bring a different sort of kung-fu to the big brawl. All good as the best technique is no technique, rather a blend of all styles.