Vacuum drying oven features
1. Advantages of vacuum drying oven: dry and fast drying under low temperature conditions, higher cost than blast drying oven, but short drying time and low temperature.
2. Drying characteristics: avoid damage and oxidation during the drying process, avoid dust particle damage and heat the air to destroy the external material structure of the article.
That is, by placing an A4 white paper in the position of the vacuum drying box door, the sealing property of the empty drying box door is judged by the free fall condition of the paper, thereby inferring the rigor of the manufacturer's product details.
2 Process temperature control options: vacuum oven temperature range is up to 250 ° C, blast drying oven up to 300 ° C. In this process, the higher the temperature, the higher the product cost. When the temperature is between 250 °C and 300 °C, the aging of the test chamber and the poor test chamber will be accelerated. At this time, it is necessary to select the products of the regular manufacturer. Guarantee test quality
Purchase budget: blast drying oven is much cheaper than vacuum drying oven. If you want to buy cheaper products, it is recommended to buy blast drying oven. Disadvantages: blast drying oven can easily damage the surface of dry samples.
The Cellos in this series are handmade solid wood cellos. We also have European Cello, General Grade Cello, China Master Advanced Cellos.
We are Middle Grade Solidwood Cello supplier & manufacturer and offer low price, high quality Advanced Solid Maple Cello,Flamed Maple Cello, etc.
We usually insisit on our crafit spirit to make the perfect cello, a good cello should with intensity of sound and beautiful surface, a good wood could make a good cello easier.
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Middle Grade Cello, Oil Varnish Antique Cello, Handmade Cello
Queshan Wahyo Violin Ltd , https://www.wahyoviolin.com