Greatssly has been one of the leading manufacturer of 3D printer/pen filament industry, which is dedicated to provide high quality and diversity 3D printer/pen filaments. Our products are primarily used in military and medical industries. We have an independent R&D capacity of 3D printer/pen filaments. The modified PLA (Polylactic Acid) material used in our products is developed independently by our own R&D institution. This material has no offensive odor and is made of degradable bio-plastic, which is no-harm to your health and environment. We have an optimized R&D team to develop new colors and materials according to your demands. Meanwhile, Greatssly has multiple large 3D printer equipment.
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