outdoor waterproof 室外防水

1) Do you have materials?

No

2) What are dimensions? (eg height, width, depth)

About 15 meters long and 50 cm high

3) Additional descriptions

Trenching, wall waterproofing, backfilling

1) Do you have materials?

没有

2) What are dimensions? (e.g. height, width, depth)

约15米长，50公分高

3) Additional descriptions

开沟，墙面防水，回填