Safety Management of Winter Construction Rules for Construction Engineering
Generally take 30 to 35 on it, low hardness is not enough, the cost is too high
Extruded board, xps extruded board the same, but the name is not the same as the name is not the same, b1 extruded board burning grade b1 level, as xps extruded board grade can be done b1 level can also b2 level,
Clamp type flexible telescopic connection: Clamp type flexible telescopic group: Outer card, seal ring, inner card connector, fastening bolt Clamp type flexible telescopic connection Features:
