Structure and composition: It is made of 100% Cotton Gauze, cotton tape, X-ray or X-ray film by degreasing, bleaching, drying, processing, cutting, folding and sewing.
Product performance: White, soft, non-toxic, odorless, non-fluorescent, no oil spots, no whiskers, no hair corners, no wrinkles or debris adhesion, and has good water absorption performance.
Model specifications: Sterile type, washed or not washed. The color is mainly white, supplemented by blue and green. Specifications are divided into 30 * 30CM-4 / 6/8/12, 45 * 45-4 / 6/8/12, 50 * 50-4 / 6/8/12, 30 * 40/40 * 45, etc., with or without belt; with or without light, can be sewn based on different requirements
Packing: Each 1-5 pieces are packaged with medical crepe paper or medical blue film, and then packed into medical paper-plastic / paper paper bags or medical blister packaging, with 5-layer double corrugated kraft paper boxes.
Scope of application: It is used for one-time use by medical institutions for surgery or protection.
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Chestnut "postpartum" weakly added phosphorus zinc boron
The decrease in female flowers of chestnut trees is mainly due to the low content of available phosphorus in soil, which affects the growth and development of female flowers. Through the increase of phosphate fertilizer and reasonable pruning, chestnut female flowers can be increased, male flowers can be reduced, and chestnut yield can be greatly improved. This technology is suitable for soil phosphorus deficiency areas. The specific method is: from October to December of that year, dig deep 30 cm along the outer edge of the canopy, apply 2 to 2.5 kg of calcium phosphate in the trench, about 50 kg of organic fertilizer, and cover the soil. If chestnuts are to be pressed for the following year, chestnut must be changed. The first is to apply "post-production fat." Chestnut should be timely fertilized after recovery to restore tree vigor, enhance the photosynthetic capacity of leaves, and ensure that there are sufficient nutrients for flower buds. In general, 500 g or 750 g urea and 200-300 g of potash can be applied to each tree; the second is loose soil cover. After chestnut trees are harvested, they should dig 20-25 cm deep in the soil inside the canopy to carry loose soil, increase soil permeability, eliminate weeds, and enrich soil organic matter. Third, reasonable pruning. Follow the principle of pruning should not be too late should be light should not be heavy, cut pests dead branches, overlapping branches, drooping branches, thin branches, branches cut out to bring orchard disposal or burned; Fourth, disease prevention and pest management. There are mainly powdery mildew and chestnut cherry bee, etc., can be used thiophanate or chlorothalonil 1000 times and speed extinction killing or enemy killed 3000 to 5000 times spray. A lot of chestnut trees only have no chestnuts (ie, empty spots) and have low economic returns. The reason for this is that, with the exception of extensive management, there is a great relationship with the use of zinc spray. Practice has proved that applying zinc and boron fertilizer to chestnut after fruit picking has an important effect on promoting flower bud differentiation, improving flower quality, and ensuring the increase in production and income in the coming year. Firstly, after chestnuts are harvested, the positive and negative sides of the leaves are sprayed with a mixture of 0.2% borax and 0.25% zinc sulphate, which can increase the sap concentration, ensure the differentiation of flower buds, and reduce the emptying rate in the coming year by more than 50%. Pay attention to the choice of no wind or breeze cloudy or sunny after 4 pm spray, to ensure that no rain after spraying 24 hours. The second is to select the soil after the fruit picking is better or when the soil is wet after the rain. At the canopy dripping line, open a groove 0.4 meters wide and 0.6 meters deep, and apply zinc and boron in the ditch. Results 100 g of borax and zinc sulfate were applied to each tree (decrease in young trees), and soil was applied after the application. In case of drought, soil moisture is insufficient, should be watered and then applied to promote root absorption and utilization as soon as possible.