規格: L=370mm、適用門高=600mm~700mm
Specification: L=370mm、use for door height=600mm~700mm
門板長度60CM以內,需搭配兩支緩降棒,可乘載門板重15KG以內
The length of door board within 60CM, need to collocate with two air pressure sticks, which can bear weight of door board within 15KG.