For GRS certificated filament, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our GRS certificated filament has been well received by many customers and enjoyed a good reputation in many countries. Xuzhou Seagor Import And Export Co., LtdGRS certificated filament have characteristic design & practical performance & competitive price, for more information on the GRS certificated filament, please feel free to contact us.