Questions with the keyword 'materials'

• andy that would be great, if our school was to buy cool new materials what would you reccomend?x by oliashall to Andy Comments: (No comments so far )
• which is more expensive concrete or steal (afurber) by afurber to Bill Comments: (No comments so far )
• do you use steel beams in your designs and construction by afurber to Bill Comments: (No comments so far )