Steel: ST 52,20 steel, 45 steel, and others.
Cylinder tube diameter 40-1000 mm,
The maximum length of 20 m delivery
OD tolerance standard: DIN 2391
Diameter tolerance standard: ISO H8
Inner surface roughness :0。2-0 。4 μ
Process: drawing, to stress, honing.
Spray: JW, ID, OD
Length: No length or length (in accordance with user requirements)
Packaging: steel strapping, woven with packaging
Protection: internal and external corrosion protection coated with oil, respectively, at both ends of the inner surface with a plastic protective cover.