<prompt> Qedela umusho olandelayo:  <response>: EMidlalweni Emikhulu yaseSpain, eFrance neyaseBrithani, iPirelli yanciphisa ukujula kwe-tread ngo-0.4mm kuzo zonke izinhlanganisela. Lokhu kwakungenxa yokulwa ne-blistering ngenxa ye-asphalt entsha kulezi zifunda zonyaka ka-2018, okwaholela ekubambeni okuphezulu nasekunciphiseni ukugqoka kwamathayi. Lokhu kwenzeke ngenxa yezinga eliphezulu lokuqhuma kwe-blister okuhlangenwe nakho kweMercedes eCircuit de Barcelona-Catalunya e-pre-season testing. 