... good price 4. DIN, ISO, AAR standard Technical parameters wire diameters(d)coil diameters(D)Free height(L0)weight(Kg)number ... Pakistan, Namibia, Venezuela, Burma, Thailand, Angola,Sudan, Australia, etc6.Besides, all those springs can be manufactured according to customer's requirement ... choice of export: we have business connection with manufacturer all over China,which makes exportationconvenience.