slide up-down door 上下滑动门
Do not slide down pipe, rotary hose, V-door ramp, or cables. Do not ride with the cat-line or air hoist.
不答应从钻杆、水龙带、大门坡道、电缆、锚头绳或气动绞车绳索上往下滑。
Using high quality specialized hardware, folding door on the slide down the folding structure, which can guarantee the slot, open flexible smoothly.
采用折叠门优质专用五金件，上滑轨下滑槽结构，保证了折叠顺畅，开启灵活。
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