轻质保温材料
light-weight thermal insulation materials
轻物质含量
lightweight matter in aggregate
轻钢轻板住宅
light steel housing system
Steel housing
超轻质中密度纤维板
Ultra-light medium density fiberboard
超轻质耐火浇注料
saper light weight refractory castable
超轻质硅酸钙板
super light weight calcium silicate product
全硅高硅分子筛
pure- and high-silica zeolites
含铬高硅铸铁
Cr-Containing Cast Iron with High Silicon
高钨高硅锡渣
slag bearing high tungsten and silicon