CORGIdirect
CORGIdirect Slide Rule Set - SRSET1
£18.99
http://www.corgi-direct.com Go to shop Description
This set offers CORGIdirect’s best selling domestic slide rules in one price saving set. These slide rule books are essential for the domestic gas installer providing a quick guide for gas rates and ventilation sizing.
SAVE 20% with this set when compared to individual prices. Set contains: SRB1: Ventilation Slide Rule GRB1: Gas Rating Slide Rule