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Basic Info.
Product Description
| dissolved oxygen | 0-20mg/L |
| turbidity range | 0-1000NTU |
| conductivity range | 0-5000uS/cm |
| pH range | 0-14pH |
| ammonia nitrogen range | 0-100mg/L |
| UVCOD range | 0-400mg/L |
| chlorophyll range | 0-500ug/L |
The monitoring robot is equipped with multi-parameter water quality analysis sensors, COD sensors and ammonia nitrogen, etc., and uses the Internet of Things data technology to transmit data to the Internet of Things platform in real time, which can monitor the water quality situation all-weather, continuous and fixed-point.
Monitoring data supports multi-platform remote online display, including web pages and mobile apps,etc.
CRRC QSYRI engages in the research of casting processes and material technologies, along with the development and manufacture of various castings, including cast steel, cast iron, nonferrous metals, high-temperature alloys, stainless steel and cobalt-base alloys, of which high-phosphorous brake shoe, Grade B steel, Grade B+ steel, Grade C steel and Grade E steel, and their manufacturing technologies have been popularized successfully in railway industry.Low-pressure casting Centrifugal casting Metal mold casting Green sand casting Resin sand casting Pre-coated sand casting Sodium silicate sand casting Precision investment casting Bimetal liner preparation MAGMA software for solidification simulation Cast steel, cast iron, aluminum alloy and magnesium alloy development. 
Forging CAD/CAE
Controlled atmosphere heat treatment Precision forging of nonferrous,ferrous metals, stainless steel, high temperature alloy, titanium alloy
The company involves in the R& D of various heat treatment processes and quenching mediums, including cemented quenching, carbon-nitriding, induction quenching and tufftriding. The company operates internationally advanced pit-type and box-type carburizing furnace production lines, as well as quenching press and induction quenching machine production lines introduced from Germany, and keeps ahead in the country in terms of gear heat treatment technology.Controlled atmosphere carburizationSalt bath tuffnitriding Fast and deep ion nitriding Medium & high-frequency quenching and equipment design Heat treatment deformation control. 
The company is also dedicated to the R & D of surface repairing and hardening technologies for large-sized components with flame-spraying, plasma spraying and electrobrush-plating techniques. Its Miller plasma spraying system can produce transferred coatings of metals, alloys and ceramics.Flame spraying, arc spraying, plasma spraying, and the equipment Electroplating, chemical plating and electro brush platingChemical surface treatment includinganodizing, chemical oxidizing, passivating,phosphating and coloring
Rail transit equipment, automobiles and new energy vehicles, ships and marine engineering equipment, aerospace vehicles, energy-saving and environmental protection equipment, wind power generation equipment, mining machinery, robot parts, construction machinery, mechanical and electrical equipment, transmission devices, instrumentation, electronic appliances, plastics R&D, design, manufacture, sales, repair, leasing, and technical services of products, metal products and parts; Mold manufacturing, sales, repair, and technical services; Metal casting, forging, and welding; Surface treatment and heat treatment; Orbital welding Engineering construction; Product testing and testing; Professional technical and operational skills training (excluding vocational certificate training recognized by the state), technical and management consulting, conference services; Rental of self-owned houses and equipment; Self-operated and agency of various commodities and technology import and export business (except for goods and technologies that are restricted by the state or prohibited from import and export); Design and produce print advertisements, and use the company's public publications to publish domestic advertisements. 
1. How long is the product warranty period?
A: Two years.
2, how to place an order to our company?
A: After the products you need are confirmed by both parties, our company will sign a contract with you, and we will execute the delivery and other related matters according to the contract terms.
3. How to distribute the product?
A: We generally provide FOB prices, and the freight is borne by the buyer. If the buyer has the demand, we can also provide CIF price, our company is responsible for shipping products.
4. Settlement currency?
A: We can settle in RMB, USD and Euro.
5. Return policy?
A: In case of any problem with the product, the two parties shall negotiate a return or exchange according to the terms and conditions of the contract.
6. After-sales problems?
A: If there is a quality problem during the warranty period, our company will answer it to the customer within 24 hours. If the problem is more serious, our company will arrive at the customer site within a week to answer it. Products beyond the warranty period we provide maintenance services, provide paid replacement parts, provide paid customer on-site service.
7, how to buy the fragile and consumable parts in the product?
A: Our company will make a list of vulnerable and consumable parts and provide channels for purchase.