Pneumatic articles that include a moveable component with a coated surface are described. The coated surface can include a surface coating including an alloy layer that includes molybdenum or tungsten in combination with one or more other materials. Pneumatic cylinders and pneumatic devices are also described.

Hydraulic devices that include a moveable component configured to contact a functional fluid during movement of the hydraulic device are described. The hydraulic device can include a coating on a surface. The coating can include a metal or metal alloy such as, for example, a molybdenum or tungsten in combination with one or more other materials.

Metal work rolls that contact a functional fluid during movement of a rotatable body are described. The rotatable body can include a coated surface with a surface coating. The surface coating can include a metal or metal alloy such as, for example, a molybdenum alloy or a nickel alloy or a tungsten alloy. Systems and processes using the coated work rolls are also described.

A method manufacturing a steel strip, including the subsequent steps of hot rolling the strip into a hot rolled strip, cold rolling the hot rolled strip and hot dip coating the cold rolled strip with a Zn based coating by leading the strip through a bath including molten zinc and wiping the strip after the coating using a gas knife having a knife slot from which a wiping gas is projected and the steel strip is cold rolled to a final cold rolled thickness of between 0.40 mm and 1.00 mm in a multi-stand cold rolling mill, and the coated steel sheet includes a steel substrate provided with a hot dip metal coating.

A rolling method using corrugated rolls and a rolling system are provided. The method includes billet preparation, first-pass rolling, second-pass rolling, and annealing. The billet preparation includes: stacking a cladding plate on a base plate to obtain a bimetallic laminated plate blank. The first-pass rolling includes: feeding the bimetallic laminated plate blank between two spaced-apart corrugated rolls for rolling to form a first bimetallic laminated plate. The second-pass rolling includes: feeding the first bimetallic laminated plate between two spaced-apart flat rolls for rolling to form a second bimetallic laminated plate. The annealing includes: performing annealing on the second bimetallic laminated plate.