外壳用钢板或不锈钢材料制成的自动伸缩式防护罩，是由外壳、弹簧轴、和纤维布等组成。
Housings made of steel or stainless steel automatic retractable shield, By the shell, spring shaft, and fiber cloth and so on.
PVC 布防护帘外壳用不锈钢材料制成的自动伸缩式防护带，是由外壳、弹簧轴、和纤维布等组成。
PVC cloth protecting curtain The automatic pull-out and take up shield with the shell made of stainless steel consists of shell, spring shaft and fabric cloth.
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