The phrase "natural raw materials" is grammatically correct and can be used in written English.
It refers to materials that are found in nature and have not been processed or altered in any way. Example: "The company prides itself on using only natural raw materials in their products, ensuring they are environmentally friendly and of the highest quality."
In fact, almost all perfumes end up being a blend of natural raw materials and synthetic raw materials.
Near a display of flooring made of natural raw materials was a row of rugs made of fibers like hemp, jute and wool.
Three different raw meals were studied, containing natural raw materials with 0, 3 and 6 wt% of SABA.
Some of the important elements in this area are the reduction of the consumption of energy and natural raw materials.
The starch-hemp composite materials are manufactured from the natural raw materials (water, starch and hemp shives) and a new durable material for construction and building.
In the same way, the attempt to modify the Riley's and Cougny's parameters, including elements present in wastes but not in natural raw materials, was unsuccessful.
Cork is a natural raw material obtained from the cork oak (Quercus suber).
The problem for Fontaine, one of France's elite perfume creators known as a "nose", and others in the industry is that this natural raw material gives the country's oldest high-luxury scents their distinctive smells.
The present work examines a currently unresolved problem of basalt fibers regarding high performance applications: the variation of fiber structural and mechanical properties due to inhomogeneity of the natural raw material and the spinning process.
Moreover, lignin is the second most abundant natural raw material and conveniently available as a by-product of the pulp industry [16].
Over the last century, perfumery has transitioned from its 4,000 year old history of relying solely on natural raw material usage to an almost entirely man-made, synthetic chemical palette.
