How to stop erosion on a river bank<br>Use coir netting that's 700-900 grams per square meter (gsm). Coir netting is made from coconut fibers and is biodegradable. Normal or heavy duty netting should be used when there is a large amount of water flow.

Based on that paragraph can we conclude that this sentence is true?
use coir netting that is 7-9 grams per square meter
No