Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Petra Microsystems Ltd ← View details 1048 Canterbury Drive, Ravenna, OH 44266 +1 330-297-0992