What are the sprinkler music?

When we walk on the streets of the city, as long as the sprinklers carry the water on the road, we will always hear the music that belongs to them. However, sometimes there are people who respond to the sprinkler music too old. In order to solve this problem, many sprinkler manufacturers are making sprinklers. Sometimes the music of the sprinkler will be adjusted. What kind of music does the sprinkler have? May we all go together and find out:
Happy birthday to you
2, the sun is shining
3, Jasmine
4. Spring story
5, wedding marches
The fifteenth moon
7, only the mother of the world is good
8, a good life safety
9, orchid grass
10, bloody style
11. Jingle Bells
12. Kangding Love Song
13, Jigong
14, longing
15, Honghe water
16, Liang Zhu
17. Spring Moonlight Night
18, the dedication of love
19. It will be better tomorrow
20, to Alice

MELAMINE

Melamine is an important chemical raw material, which is mainly used for condensation with aldehyde to produce melamine and formaldehyde Resin. This resin is not easy to ignite, water resistant, heat resistant, aging resistant, arc resistant, chemical corrosion resistant, has good insulation performance and mechanical strength, and is widely used in wood, plastic, paint, paper, textile, leather, electrical, pharmaceutical and other industries; It can also be used as glue, flame retardant, formaldehyde cleaner, etc; In some Asian countries, it is also used to make fertilizer.

Its main uses are as follows:

(1) Decorative panel: It can be made into fireproof, anti-seismic and heat-resistant laminated plates, bright color, solid and heat-resistant decorative plates, and used as the veneers of aircraft, ships and furniture, as well as fireproof, anti-seismic and heat-resistant house decoration materials.

(2) Paint: after etherification with butanol and methanol, it can be used as the binding agent of advanced thermosetting coatings and solid powder coatings, and can be used to make metal coatings and high-grade amino resin decorative coatings for vehicles and electrical appliances.

(3) Molded powder: melamine plastic can be made through mixing, granulation and other processes. It is non-toxic, antifouling, and can still maintain good electrical performance when wet. It can be made into white, batter-resistant household utensils, sanitary ware, imitation porcelain tableware, electrical equipment and other advanced insulating materials.

(4) Paper: After etherification with ether, it can be used as a paper treatment agent to produce wrinkle-resistant, shrink-resistant, non-perishable banknotes, military maps and other high-grade paper.

(5) When mixed with other raw materials, melamine formaldehyde resin can also produce fabric finishing agent, leather tanning agent, polishing agent and water-resistant agent, rubber adhesive, combustion aid, high-efficiency cement water-reducing agent, steel desalting agent, etc.

MELAMINE, melamine powder, Glazing powder,Cyanuric amide, trimeric amide

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