1. Production description
The curved spiral stair can be used as an evacuated spiral stair. The plane angle between the upper and lower tread must be no more than 10° except for the case that the width of each tread that is 25 cm away from the handrail(at the narrow end of sector step) is over 22 cm.
This is the minimum allowed technical standard formulated according to the requirement of safe evacuation and reduction in the fatigue strength of walking. As is known to us, the feature of the sector step is that one end is narrow, the other end is wide. That the plane angle is no more than 10° is to make it gentle for changing direction while walking and to reduce faintness.
2. Lead time
1 - 100
To be negotiated
3. Different designed stairs
Factory & Slabs Warehouse Video
Xiamen Realho Stone Co., Ltd
Tel: 86-592-8326666 Fax: 86-592-8327777
Add: Unit 8F,Yongtongchang Blad,No.388 Jiahe Road, Xiamen China
Welcome to purchase high quality and pure natural spiral stairs of panda white marble from Realho Stone which is well-known as one of the leading manufacturers and suppliers in China. Under strict quality control and management system, our own professional stone plant will offer you the best quality spiral stairs of panda white marble at cheap price.