11 Old bolt holes not re-used should be filled in with glue/resin/putty of a similar colour to the rock.
11 Old bolt holes not re-used should be filled in with glue/resin/putty of a similar colour to the rock.
11旧有锚栓留下来的洞口，应用和该处岩石色彩相似的黏胶、树脂、补土加以补满。
11 Old bolt holes not re-used should be filled in with glue/resin/putty of a similar colour to the rock.
11旧有锚栓留下来的洞口，应用和该处岩石色彩相似的黏胶、树脂、补土加以补满。