Roofing strip

I would like to have the sealing profile of the roofing strip made as a piece of meter.Due to age and weather effects, "these" have become inconsiderable and ineffective (cracky, grey and hardened).
Contacts with an exporting company have been established. In order to be able to make the tool, I need a 3 cm long piece of decorative strip with both seals.(Delivery costs will be refunded)
==References== another variant of repair possible?