| タイプ | Manufacturer |
|---|---|
| ウェブサイト | https://www.helixfiber.com/info/ |
Helix was originally designed as an additive to high strength concrete for earthquake and blast resistance.
| タイプ | Manufacturer |
|---|---|
| ウェブサイト | https://www.helixfiber.com/info/ |
Helix was originally designed as an additive to high strength concrete for earthquake and blast resistance.