Nowadays, from supermarkets to small shops, stalls, etc., merchants use customers to pack fruits, cakes, meat and other foods, many of which use plastic bags, which also cause a series of environmental problems, and earlier, the merchants used Those packaging materials for packaging food, such as lotus leaf, wood paper, etc., are all natural, non-polluting packaging products.
At that time, these packaging supplies have been used for many years, first of all, "Lotus", after buying the store, they used a large lotus leaf that was washed clean, and then used a straw-like horse lotus, and it was hygienic. Keep it fresh.
There is also a packaging item known as "wooden paper", which is said to be made of wood. This kind of smooth and pale yellow wood paper is thin and thick like Daolin paper. It can be bent freely but cannot be folded. The wooden paper of the shop is rolled into a cylindrical roll like the current toilet paper. The surface of the wood paper has a slight thin line of fine lines, so it can always be torn along any fine lines into a large-sized wrapping paper with a straight edge. The tearing depends on the quantity of food purchased by the buyer. The torn rectangular or square wooden paper looks clean and beautiful.
Jiuzhi Plastics Network
Stainless steel round steel belongs to a class of long wood, also belongs to a class of bar, the so-called stainless steel round steel refers to the cross section of uniform circular long wood, generally about four meters long. It can be divided into light circles and black rods. The so-called light circle, refers to the smooth surface, after the quasi-rolling treatment; And the so-called black rod, refers to the surface of the black thick, hot rolled directly.
Stainless steel round steel can be divided into hot rolling, forging and cold drawing according to the production process. Hot rolled stainless steel round steel is 5.5-250 mm in size. Among them :5.5-25 mm small stainless steel round steel mostly to straight strips in bundles supply, commonly used for reinforcing bars, bolts and various mechanical parts; Stainless steel round steel greater than 25 mm, mainly used in the manufacture of machine parts or seamless steel pipe billets.
Stainless steel round steel has broad application prospects, and is widely used in hardware kitchenware, shipbuilding, petrochemical, machinery, medicine, food, power, energy, aerospace, building decoration. Seawater equipment, chemical, dye, paper, oxalic acid, fertilizer and other production equipment; Photography, food industry, coastal facilities, ropes, CD rods, bolts, nuts.
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