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Tests
Laboratory testing
Accreditations and approvals
List of accredited and authorized tests
International References
Notified Body
Conditions of supply
Inspection
Inspection
Certificates
Technical inspections
KTW-BWGL Hygienic
Terms of Supply
Training
Certification
Accreditation
Personnel certification body
Plastic Welders
Metal Material Welders
FGAS Certification
Braziers Certification
Other Services
Installation Services
Welding machine calibration
Legal Expert Assessments
Rental
Site sampling
Doubts about the supply?
Online Offers
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L’ATELIER® by TTR INSTITUTE – Professional Training Without Borders
05 December 2025
Plastic and Steel Welders | F-Gas Operators
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Materials in contact with drinking water
15 October 2025
Italian transposition of Directive (EU) 2020/2184 (Drinking Water Directive - DWD)
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🔎 Do you install PE100-RC pipelines? Make sure it’s truly RC!
11 June 2025
tests with accreditation according to UNI CEI EN ISO/IEC 17025.
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Steel Welding Course
20 May 2025
Enrollments Open!
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🔧 Calibration of Steel Welders: Quality and Safety 🔧
29 April 2025
Ensure every project is a success!
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🔧 Tensile Testing according to EN ISO 13953 🔧
18 April 2025
Ensuring the Quality of Polyethylene Joints 🔧
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🚀 Practical Course for Gas Boiler Repair 🚀
28 March 2025
Accademia degli Impiantisti
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📢 News! Follow us on Facebook and Instagram! 📢
03 February 2025
Join us and always stay up to date with the news! ! 💙📲
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