Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Welsh Slate Limited ← View details Penrhyn Quarry, Bethesda, Bangor, Gwynedd LL57 4YG, United Kingdom, Bethesda, England