Radiator Caps inquiry from Jordan

we are looking for a reliable supplier how can provide us t=with Pressure Caps we need for our Radiator orders.
Please advise us your best price for Pressure Caps of the following specifications:
• Pressure Caps Material Must be Stainless Steel.
• Opening Pressure must be 1.1 Bras.
• Acceptable Tolerance is +/- 10% (1.0 – 1.2) Bras.
(*) We have more specifications for the Label and some drawing for the Pressure Caps which we can discuss n further details after we receive your reply.