Pressure Technologies (AIM: PRES), the specialist engineering group, is delighted to announce that its wholly owned subsidiary, Chesterfield Special Cylinders (“CSC”), has secured a contract with Haskel Hydrogen Group (Haskel), part of the Precision and Science Technologies Segment at Ingersoll Rand Inc. (NYSE:IR) for the supply of high-pressure Type 1 steel vessels to be used for hydrogen storage in three new Hydrogen Refuelling Stations (“HRS”)….