It is generally applicable to air brake pipelines in the heavy-duty vehicles and DIN70010 trailers.
Its working pressure must not be higher than 1.2MPa and working temperature is -40~100℃.
It has three series including copper, steel and nylon and four specifications including 6.3, 8, 10 (copper 9.5) and 14.9.

At the moment, it is generally applied in Dongfeng heavy-duty vehicles, which is equipped with copper or steel as joint in the carrier of nylon materials and supporting hoses in the diameter of 6X1\ 8X1\ 10X1.25\ 12X1.5\ 14X1.5.
It simplifies field pipeline installation and greatly reduces the equipment weight of the complete automobile.

It is generally named because that hose is used in combination with union nut, chuck, and lining core, and that cone of union nut and butt joint are connected and sealed. Generally in the appearance of end straight, right-angled bend, and tee joint, it is widely applied in traditional auto chassis pipeline system. In structure, it is classified to 24°and 36°in taper surface.

Generally composed by (PA11/PA12 Nylon pipe and PU pipe) air brake hose and assembly (including 3C certificate), helix pipe assembly, and heptcable.
it is generally sold to special vehicle and tractor customers in a full range of specifications in dimensions in the British system and metric system.

This series generally covers all the dimensions of joint parts of hydraulic oil pipelines and pneumatic hoses in full range of specifications. Besides, it may be customized to non-standard parts. Made in the forging technology, its appearance is bright and clean with high precision, and it is intended to be used together with rubber pipe assemblies in all series.

The trailer’s air brake joint (coupling head) and other metal parts of chassis are also called touch-type quick joints due to their application of cap-lamination unlocking rings. They are simple in structure and convenient in use, and have been widely applied in industrial and civil mechanical manufacturing and applied in auto industry in some range.