DJ-300 sink prevent plastic disk with latches, DJ-300N sink prevent plastic disk without latch

Description

DJ-300 sink prevent plastic disk with latches is a plastic disk with some different diameter latches. At the center there is a section of stand pipe. In case of flat roof net house is stand at the ground with low dense soil we must bury this sink prevent plastic disk under the ground to support pipe pillar. While we bury this DEAR DEER sink prevent plastic disk, the pipe pillars stuck at latch and mount vertically at the sections of stand pipe in the center. After we refill the soil, the pipe pillar stand on a wider area disk to support the weight up the ground and not sink. The sizes of latches are. There are 3 diameter types of disk 12cm, 17cm, 21cm.

DJ-300N sink prevent plastic disk without latch is a plastic disk, at the center there is a section of stand pipe. In case of flat roof net house is stand at the ground with low dense soil we must bury this sink prevent plastic disk under the ground to support pipe pillar. While we bury this DEAR DEER sink prevent plastic disk, the pipe pillars mount at the sections of stand pipe in the center. After we refill the soil, the pipe pillar stand on a wider area disk to support the weight up the ground and not sink. There are 3 diameter types of disk 12cm, 17cm, 21cm.