GB/T 34742-2017木门窗用木材及人造板规范国家标准
英文:Specifications for timber and wood-based materials in windows, door leaves and door frames GB/T 34742-2017介绍: 国家标准《木门...
英文:Specifications for timber and wood-based materials in windows, door leaves and door frames GB/T 34742-2017介绍: 国家标准《木门...