正栄商会 List of Products and Services

This is a fertilizer that contains a balanced amount of phosphorus and magnesium! (◎ Due to its high nutrient content, it allows for labor-saving fertilization.) It is particularly effective in volcanic ash soil fields and rice paddies. - The synergistic effect of phosphorus and magnesium promotes photosynthesis and enzyme activation, enhancing taste and quality. - The action of magnesium improves phosphorus absorption, promoting initial growth, tillering, root elongation, flowering, and fruiting of crops, with effects lasting into the medium to long term.

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It is the highest quality humic acid material formed from the accumulation of plants in shallow rivers over tens of thousands of years and the decomposition by microorganisms! Humic acid weakens the fixation of phosphoric acid in the soil, making it available phosphoric acid. It enhances nutrient retention and water retention with a high cation exchange capacity. ■ Effects of Humic Acid (Fulvic Acid) ◎ Direct Effects - Promotion of root development and root hair formation! Humic acid promotes root development and root hair formation. Additionally, the chelating action of humic acid captures minerals and trace elements, facilitating nutrient absorption. ◎ Indirect Effects - Improvement of soil physical properties! It enhances the activity of microorganisms by providing habitat and food, leading to the formation of soil aggregate structure. - Reduction of phosphoric acid fixation! The chelating action of humic acid transforms fixed phosphoric acid into a state that can be absorbed by plants. - Improvement of nutrient retention! Humic acid carries a negative charge, allowing it to retain cation elements such as calcium, potassium, and magnesium, which can help prevent the leaching of fertilizers to some extent.

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Urea is the highest component among nitrogen fertilizers. Additionally, nitrogen in the form of urea is a neutral, non-sulfate fertilizer both chemically and physiologically. - It can be dissolved in water for foliar application. - We have made efforts to prevent caking. - The fine granules are prilled urea. - The large granules are coated to prevent caking. ■ Characteristics and Effects of Nitrogen - The nitrogen component of urea fertilizer is also known as "leaf fertilizer," and it is effective for the growth of leaves and stems. Nitrogen is an important component of proteins that make up the plant's body. - It dissolves well in water and has immediate effects. By applying it to the leaves when the roots are weakened or when symptoms of nitrogen deficiency appear, it can help maintain and restore growth.

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SK Mineral Mag is a natural magnesium fertilizer made by refining bittern derived from seawater. Since it utilizes seawater from salt fields, it contains high-quality mineral components that enhance the taste and quality of crops. Additionally, being water-soluble, it has immediate effects and is ideal for top dressing. ■ Characteristics and Effects of Magnesium Sulfate - Magnesium is an essential component of chlorophyll, which is vital for photosynthesis in plants. - Magnesium aids in the absorption of phosphorus, and in fruit and vegetable crops, it can improve quality aspects such as sweetness, glossiness, and texture. - Magnesium enhances the effectiveness of silica, contributing to increased resistance to pests and diseases as well as improved cold tolerance.

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The process from mining to refining is consistently carried out by a single company, ensuring not only a stable supply but also stable quality. Due to its high melting point and minimal shape changes from heat, it can be widely used in applications such as refractory materials and flooring.

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◆◇◆◇◆◇◆◇◆◇◆◇◆◇◆◇◆ First 10 customers Free sample book giveaway ◆◇◆◇◆◇◆◇◆◇◆◇◆◇◆◇◆ There are various types and grain sizes of abrasive sand... It's hard to know how to choose based on the intended use... We are currently giving away a free sample book that includes various types of abrasive sand we handle. The listed grain sizes range from F8 to F220. ■ Some of the included content SK Random, White Random, Boron Carbide, etc... The selection of abrasive sand grain sizes can also be used as teaching materials for new employees. ◎ Examples of abrasive sand applications are available in the catalog. ◎ If you would like a sample book, please indicate so.

• Safety and consumables

White alumina is an abrasive material produced by melting and reducing alumina-based raw materials in an electric furnace, followed by solidification, crushing, and granulation. It is a white substance refined and crystallized from high-purity corundum, characterized by high hardness and excellent grinding power. Being white, it allows for processing without staining the color of the workpiece. For more details, please contact us or download the catalog.

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Carborundum and Green Carborundum are well-regarded products from Shoei Shokai Co., Ltd., which boasts a long history of achievements. They are proven long-selling grinding materials delivered with stable quality. Manufactured in a factory certified with "ISO9001," they offer high quality. Provided as imports from China, they come at an attractive price that contributes to cost reduction. We will deliver within "three days," including the order date. For inquiries about quotes or if you would like samples, please contact Shoei Shokai by phone or fax. 【Features】 ○ Reliable products ○ High quality ○ Proven long-selling products ○ Attractive prices ○ Immediate product delivery For more details, please contact us or download the catalog.

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Alumina slag (Fe-Si No. 6) reacts quickly and is easy to adjust, which has led to its adoption by various companies and has received positive feedback for being "easy to handle." It can be used for applications such as heavy liquid separation materials, abrasives, and construction aggregates. It will be delivered in a bulk bag. As an imported product, it will be delivered to the designated location from Yokohama or Osaka. For more details, please contact us or download the catalog.

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Brown alumina abrasive SK Arandom is an abrasive material produced by melting and reducing alumina-based raw materials in an electric furnace, followed by solidification, crushing, and granulation. It is brown in color and contains an appropriate amount of titanium oxide. It can be used for various applications such as blasting abrasives and refractory materials. The hardness of SK Arandom is a Vickers hardness of 2,000 to 2,200 kg/mm², and a new Mohs hardness of 12. 【Features】 [Arandom A] ○ Melting and reduction of alumina-based raw materials in an electric furnace ○ Brown in color with an appropriate amount of titanium oxide (made in China) ○ Usable for various applications [SK Arandom] ○ Chemical composition: Equivalent to standard value JISR6111 ○ Specific gravity: 3.96 For more details, please contact us or download the catalog.

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Boron carbide (B4C) is a ceramic with hardness following diamond and cubic boron nitride. In addition to its applications as an abrasive for precision grinding of cemented carbide molds, machining of cemented carbide parts, and polishing of gemstones, it is also used in refractory materials, neutron absorbers, and SiC sintering aids. 【Features】 - Abrasive with high hardness - Usable as refractory materials and SiC sintering aids - Slows down the particle velocity of neutrons - Non-magnetic - Does not react with acids or alkalis - Heat-resistant and corrosion-resistant - High wear resistance For more details, please contact us or download the catalog.

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