PU, PA and PE tube for factory automation, pneumatic systems, robotics and food machinery — made to order and shipped worldwide under our own CROSS®, DONGLING® and JKK® brands.
Not a trading desk — we extrude our own tube, build our own tooling, and back every claim below with something you can check.
Nearly two decades extruding plastic tube on our own lines in Xikou, Ningbo — not sourced and relabelled.
Custom OD/ID, hardness, colour and reel length — backed by our own forming moulds and six patents.
Quality system certified to ISO 9001:2015; materials tested by SGS for RoHS, REACH and halogen-free.
Standard sizes and colours held in stock, so they ship without waiting on a production run.
We extrude the full pneumatic-tube range in-house — outer diameters from roughly 2 mm to 30 mm, in seven stock colours or a custom colour on request.
Flexible air hose in seven colours — plus coil, braided, food-grade, flame-retardant and anti-static lines.
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High-burst nylon tube for compressed air, fuel and chemical lines. −40 to +100 °C.
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Light, low-cost tube for water, drainage and chemical lines. Good chemical resistance.
View specs →Also produced: PU spiral / recoil hose, braided & twin hose, PU solid cord, and matching quick-connect fittings. See full range →
Our tube carries air, fluid and signal across automation, pneumatics and process machinery worldwide.
Everything we ship carries one of our own registered trademarks — two for tubing, one for the pneumatic components that go with it. Same factory, same quality system behind all three.
Our pneumatic-tube mark — PU air hose, coil and specialty lines.
Tube brand spanning our PU, PA and PE range for industrial supply.
Our pneumatic-components mark — solenoid valves, air cylinders, fittings and more.
Our own building, extrusion floor and sample room in Xikou, Fenghua — the plant behind every reel. Verify the factory →
Tell us the tube you need — material, OD × ID, colour and quantity — and we'll come back with a quote and lead time.
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