In summer, the indoor temperature of the shed is high. During production, methods such as enhanced ventilation, covering with shading nets, and watering are used to cool down, but sometimes the temperature of the shed cannot be lowered, and the water evaporates quickly at high temperatures, and the soil is often in a dry state. Watering. Covering crop stalks in the vegetable operation line not only prevents the ground temperature from rising rapidly due to temperature rise, but also maintains soil moisture. Practice has proved that this method can usually lower the ground temperature by 4~5℃, and can extend the watering every 5-7 days in summer to once every 10-12 days. Crop straws are best to be crushed and covered, so that vegetables can be directly turned into the soil as a base fertilizer after the garden is cleared to increase soil organic matter. In summer, the indoor temperature of the shed is high. In production, methods such as strengthening ventilation, covering with shading nets, and watering are generally used to cool down, but sometimes the temperature of the shed cannot be lowered, and the water evaporates quickly under high temperature, and the soil is often in a dry state, which has to be three days. Water both ends. Covering crop stalks in the vegetable operation line not only prevents the ground temperature from rising rapidly due to temperature rise, but also maintains soil moisture. Practice has proved that this method can usually lower the ground temperature by 4~5℃, and can extend the watering once every 5~7 days in summer to once every 10~12 days. Crop straws are best to be crushed and covered, so that the vegetables can be directly turned into the soil as a base fertilizer after the garden is cleared to increase soil organic matter

When storing precision seamless pipes, pay attention to moisture, dust, oil, lubricating oil, etc., as well as rust on the surface, or poor welding corrosion resistance.

When moisture is immersed between the film and the steel substrate, the corrosion rate will be faster than when there is no film. Store in a clean, dry and ventilated place. Keep the original packaging. The stainless steel film should be protected from direct light. The film should be inspected periodically. If the film deteriorates (film life: 6 months), it should be replaced immediately and padded If the packaging material is soaked in the paper, the backing paper should be removed immediately in order to prevent surface corrosion.

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