Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information NRH Chemicals ← View details 30/8 Victoria Ave, Castle Hill, New South Wales 2154 (02) 9894 7360