Patent for basement and its moisture-proof ventilation system

Tag: 专利

Double-layer square steel pass sound insulation structure patent

Double-layer square steel pass sound insulation structure patent

The installation structure patent of base skeleton damping and sound insulation

The installation structure patent of base skeleton damping and sound insulation

Patent for wall structure of compound building to prevent sound wave of solid noise

Patent for wall structure of compound building to prevent sound wave of solid noise