下水50管支架，有长短2个版本，用于支撑悬垂的50厘米直径下水管。

需要额外配件：

1、螺丝贴

2、M3×12螺丝 4个，M3螺母2个（其实比这个长度更长也可以）

The following is machine translation：
There are two versions of the 50 centimeter diameter sewer pipe bracket, long and short, used to support a suspended sewer pipe.
Additional accessories required:
1. Screw stickers
2. 4 M3 × 12 screws and 2 M3 nuts (actually longer than this length is also acceptable)