tempered glass square 's qualifications and internationally authoritative certifications
Laminated insulated glass is JinYi Safety Energy-saving Glass Co.,Ltd original service philosophy, which fully shows its own superiority. Get price! The Professional Manufacturer of Quality tempered glass square JinYi guarantees tempered glass square to be high-quality by carrying out highly standardized production. Compared with other products in the same category, it has the following advantages. JinYi is rich in industrial experience and is sensitive about customers' needs. We can provide comprehensive and one-stop solutions based on customers' actual situations.

How is pine perfume made? Scrape the pine tree around (with special knives ),Pine will flow out,Collect it in plastic bags and scrape it again a few days later,A large bag of gum can be collected so many times.Filter after heating into liquid,It's the gum we use.Gum is a mixture of many ingredients,Its composition varies slightly due to different pine species,Mainly composed of resin acid,There is also a small amount of fatty acids and neutral substances.According to analysis,In the general gum,The content of resin acid is 85.6 ~ 88.7%,The content of fatty acids is 2.5 ~ 5.4%,The content of neutral substances is 5.2 ~ 7.6%.Resin is an important raw material for chemical industry,Widely used in various industrial sectors,1. soap industrial resin is cooked with soda ash or caustic soda,Form loose soap.Loose soap has a lot of defacing power,Soluble in water,Can dissolve grease,Easy to bubble.The gum is sticky,Soap can not easily crack and sour deterioration.2. the Paper-making industry is used as a pape

(Reward for high scores) please give a short article about the development direction of functional materials research (200-300 words) Introduction: mention the word 'nano,Many people may have heard of it,But what is nano,What is nano-material,It may not be clear to many people,This paper mainly introduces the research status and development prospects of nano-and nano-materials,I believe that with the development of science and technology,There will be more and more nano-materials coming into people's lives,For the benefit of mankind.Nano is the translation of English namometer,Is a unit of measure in physics,1 nano is one billion of 1 m;Equivalent to the length of 45 atoms arranged.Generally speaking,Equivalent to the thickness of one in ten hair.Like mm, Micron,Nano is a scale concept,There is no physical connotation.When the material reaches the nano scale,It's about 1-This range of 100 nm,The performance of the substance will change,Special performance appears.This one is different from the or
Custom message
Chat Online 编辑模式下无法使用
Chat Online inputting...