I. Guidelines for the use of pesticides for the production of AA grade green foods 1. Permitted use of AA grade green food production materials for pesticide products.
2. It is allowed to use plant-derived insecticides , fungicides , repellents and synergists with moderate toxicity.
3. Allow the use of parasitic predation to prey on natural enemies.
4. It is allowed to use insect pheromones and plant-derived attractants in pest traps, mineral oil and vegetable oil preparations, sulfur preparations and copper preparations from mineral-derived pesticides.
5. Allow limited use of live microbial pesticides.
2. Guidelines for the use of pesticides for the production of Grade A green foods 1. Permitted use of AA grade and A grade green food production materials pesticide products.
2. It is allowed to use plant-derived pesticides, animal-derived pesticides and microbial-derived pesticides with moderate toxicity.
3. Sulfur preparations and copper preparations are allowed in mineral-derived pesticides, and some low-toxic pesticides and moderate-toxic organic synthetic pesticides are used to a limited extent, but specific operations are required according to national standards.
Self-tapping thread inserts in steel stainless and carbon steel are screwed into preformed or predrilled holes and cut their own threads into the wall for permanent installation. Eliminates the time and expense of tapping. Provides a strong wear and vibration resistant thread.
Stainless Steel Insert,Screw Locking Thread Inserts,Stainless Steel Threaded Inserts,Stainless Steel Keylocking Threaded Inserts
Shenyang Liming Mechanical Component Factory , https://www.helisert.com