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Geli insulation cotton: excellent insulation has a strong stability
Geli insulation cotton: excellent insulation has a strong stability
Insulation cotton in general terms can play a heat insulation effect of cotton products are collectively referred to as insulation cotton, insulated cotton with high temperature
2017/8/31
Guangzhou and Sheng noise doors: high sound insulation performance
Guangzhou and Sheng noise doors: high sound insulation performance
Soundproof doors are mainly used in high noise requirements from the place of noise protection
2017/8/31
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