Our company performs the testing, auditing and certification of all the standards mentioned below professionally for all companies, regardless of whether they are small or large.

TSE-EEC / 77 / 389: 2000 17 of May 1997 / 77 / eec dated regulation of towing devices of motor vehicles (amended by regulation 389 / 96 / ec) 

TS ISO 1726 Road vehicles - Mechanical connection between tractors and semi-trailers - Interchangeability 

TS ISO 11407 Road vehicles - Commercial vehicles - Mechanical connections between towing vehicles with central and rear axle trailers and central axle trailers - Interchangeability 

TS ISO 11406: 2001 / Cor 1: 2005 Road vehicles - Commercial vehicles - Mechanical connections between towing vehicles with a rear-mounted towing device and interchangeability 

TS ISO 3584 Road vehicles - Installation of mechanical fittings to the rear cross members of trucks 

TS ISO 8755 Road vehicles - Commercial vehicles - Mechanical connections between towing vehicles and towed vehicles - 40 mm towbar connection 

TS ISO 1103 Road vehicles - Connecting knobs for caravans and light trailers - Dimensions 

TS ISO 1726-1: 2000 Road vehicles - mechanical coupling between tractor and semi-trailer - Part 1: Interchangeability between tractor and semi-trailer for general cargo  

TS ISO 1726-1: 2000 / Cor 1: 2007 Road vehicles - mechanical coupling between tractor and semi-trailer - Interchangeability; Technical Fix 1

TS 428 ISO 337 Road vehicles - fifth wheel coupling pin for semi-trailer of 50 -Basic dimensions and connection / interchangeability dimensions 

TS 944 ISO 1102 Karayou vehicles-Commercial vehicles-Mechanical connections between towing vehicles and towed vehicles-50 tow bar connection in mm

TS ISO 4086 Road vehicles - 90 semi-trailer fifth wheel pin - Interchangeability 

TS ISO 7375-1 Road vehicles - Helical hose assemblies for air brake connections between tractor and trailer part 1: Dimensions 

TS ISO 8716 Road vehicles - Fifth wheel pins - Strength test

TS 9619 Road vehicles - Caravans and light trailers - Towing equipment and connecting knobs - Strength test 

TS 9621 ISO 3842 Road vehicles - Fifth wheels - Interchangeability 

TS ISO 11406 Road vehicles - Commercial vehicles - Towing vehicles with rear-mounted towing equipment and mechanical connections between them - Interchangeability

TS 12681 Authorized services - Road vehicles - Rules for special vehicles 

TS EN 29367-2 Fastening and securing devices - Road vehicles - For maritime transport - General specifications - Part 2: Semi-trailers