Pirastro Rosin Oliv Evah 9001。售價 HK$115，有貨。Pirastro Rosin Oliv Evah 9001 is the well-rounded best-seller rosin for violin and viola players. Pirastro Rosin Oliv Evah is relatively soft, suits Evah Pirazzi strings, Oliv strings, synthetic and gut strings alike. H…