2023.10.25 customer feedback from Knauf company

2019.9.24 customer feedback from Saudi Arabia

2018.9.8 customer feedback from Paraguay

2018.12.21 customer feedback from Vietnam
2018.7.19 customer feedback from Bolivia


2018.6.20 customer feedback from New Zealand

2018.6.12 customer feedback from Canada

2015.1.26 customer feedback from Ghana

2015.1.9 customer feedback from Taiwan Province of the People’s Republic of China

2014.11.6 customer feedback from Peru
