Ammonium bicarbonate should not be applied in greenhouses or greenhouses. Because ammonium bicarbonate is easily decomposed into ammonia in the greenhouse, it volatilizes.

Ammonium sulfate should not be used for a long time. The fertilizer is a physiologically acidic fertilizer, and long-term use in a piece of land increases soil acidity and destroys soil structure. In alkaline soils, ammonium ions in ammonium sulfate are absorbed, and sulfate ions remain in the soil and interact with calcium to harden the soil compaction.

Ammonium bicarbonate should not be applied shallowly, the application depth should be more than 6 cm, and the soil should be covered immediately after application.
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Grinding And Polishing Machines

Grinding

The surface of mounting sample is not smooth. Grinding is to remove excess part of the sample with abrasive materials.

Polishing

Polishing is to use a small amount of polishing powder or polishing liquid to place on polishing cloth, later the sample is polished.Purpose of polishing is to remove the deformation and scratches during the grinding process, resulting in a scratched mirror surface for microscopic analysis of the microstructure.

Metallographic Equipment

Grinding And Polishing Machines,Grinding Polishing Machine,Buffing Grinder Machine,Metallographic Grinding And Polishing Machine

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