Self drilling Screw made of 410 stainless steel, high hardness (40 Rockwell C), steel process.
Drilling screw is also very strong hardness, compared to the ordinary screw up, not only to maintain the ability is good, the connection object effect is also very strong, for the performance of the screw, are generally does not need auxiliary processing, can be directly on the object directly drill a Kong Sue into objects, not just use rise very convenient, Also can greatly improve the efficiency of work. This kind of drilling screw can be said to be the first choice of workers in various fields.
So what is the use of drilling screws? Self drilling screw,hex Self drilling screw,truss Self drilling screw,flat Self drilling screw,pan Self drilling screw Shenzhen Lanejoy Technology Co.,LTD , https://www.szlanejoy.com
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Grape black pox is a fungal disease. It mainly winters in the cortex of grape vines and branches. In the second year, when the grape buds grow up, the local temperature reaches 22 ° C, and when the humidity reaches 80% or more, black pox begins to endanger. It is mainly harmful to young leaves such as young leaves and young ears of grapes. When there is a black spot with a large needle tip, it is the initial symptom of black pox disease. Therefore, it should be sprayed before the flowering of the grapes. First, use 70% methyl thiophanate wettable powder to water 1000 times, 75% chlorothalonil wettable powder to water 100 times or 10% Shiga high wettable powder to water 3000 times. The following parts should be used for spraying. For plants that are not ill, they should be treated three times in advance. The first time should be sprayed seven days before the flowering of the grapes; the third time can be sprayed again with the second pass ten days apart.
1 stainless steel plate, metal plate, galvanized steel plate, engineering installation.
2 metal curtain wall metal light compartment and other indoor and outdoor installation.
General Angle steel, channel steel, iron plate and other metal materials combined installation.
4, automobile, container, shipbuilding, refrigeration equipment and other assembly projects.
It is good to prevent grape black pox before flowering.
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