What kind of paper is single light kraft paper?

What kind of paper is single light kraft paper?: The surface of kraft paper resembles a layer of paper with a film or wax oil.
In fact, the surface of the single light kraft paper does not have a film or oil, but the surface is hard calendered. The surface of single-light kraft paper is very bright and smooth and delicate, the printing effect is more colorful, single-light kraft paper has its natural color, brown and white and other colors, white single-light kraft paper has the printing effect of coated paper, and there is also the toughness and tensile strength of kraft paper.
What FSC certification is?

he FSC (Forest Stewardship Council) is an independent, non-profit, non-governmental organization whose mission is to promote environmentally friendly, socially beneficial and economically viable forest management worldwide by developing generally accepted principles and standards for forest management. FSC kraft paper including FSC white kraft paper and FSC yellow kraft paper and other colors of packaging kraft paper; with FSC certification, in addition to reflecting that the enterprise meets strict social and environmental standards, enterprises choose FSC certified kraft paper mostly because of the requirements of buyers or customers.