Joint Learning*1110: +2 wealth for participation, +9 wealth for correct answers
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This post was last edited by hjztbwg on 2015-11-17 09:55. The materials used for mechanical smoke exhaust ducts must be __non-combustible materials__.
Non-combustible material. －－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－
The materials for mechanical smoke exhaust ducts must be non-combustible.
The materials for mechanical smoke exhaust ducts must be ___non-combustible materials___.
The materials for mechanical smoke exhaust ducts must be __non-combustible materials__.
The materials for mechanical smoke exhaust ducts must be _non-combustible materials_____.
The materials for mechanical smoke exhaust ducts must be _non-combustible materials__.
The materials for mechanical smoke exhaust ducts must be (made of non-combustible materials)
The material for mechanical smoke exhaust ducts must be ______. non-combustible materials
Non-combustible material. The materials for mechanical smoke exhaust ducts must be non-combustible.
Non-combustible material or fire-retardant material