What is the difference between the silver contacts of different types of switches

The double control switch of silver contact refers to the separate control of two places for a certain device. Double double control refers to the two keys on the two panels which are not local, and control two power supplies to control the same device in different places. The principle of single-pole double-control switch The single-pole double-control switch is actually two single-pole double-throw switches connected in series and then connected to the circuit. Each single-pole double-throw switch has three terminals connected to two silver contacts and a knife, respectively. Here's how the silver contacts of different types of switches differ.

The single joint double control switch connects the two silver contacts of the two single - knife and double throw switches, and the two switch knives are connected to both ends of the lamp as the ends of the whole switch. When the switch is connected to the respective contacts at the same time, the circuit is connected and the light is on. If one of the knives of the two switches hits the silver contact and the other hits the silver contact, the circuit will not work, then the light will be off. So two switches can control the lights. The two switches can be placed at both ends of the stairs, or at both ends of the corridor, so that the lights can be opened before entering the corridor and the lights are turned off at the other end through the corridor. It can not only be illuminated, but also avoid the waste of electricity.
The definition of double double control switch is similar to the definition of a single double control switch. The only difference is that the double switch is a switch with 2 buttons, and the single connection is just a button. The double double control switch means that on one panel, two electrical devices are controlled by two buttons, that is, two switches control two circuits.

Our customers are from all over the world.They come to visit our company to see our workshop and productive power,which good for our cooperation and strengthen our friendship.In the end,we achieve a win-win situation.

OUR AMERICAN CUSTOMERS

Andy visited our factory.

On 26th April 2017, the US customer Andy came to visit our factory. Our engineers introduced the technical aspects of cnc machining parts, stamping parts and silver contacts to him, who said this harvest was great .At last,we have a dinner together.

Alfredo And His Team Visiting Our Factory.  

    On 27 th February 2017, the United States customer Alfredo and his team came to visit our CNC machining factory, testing stamping products. They and our engineers talked to the problem of the stamping products, Through a morning discussion,finally found the best solution, Alfredo said that your company is one of the most powerful companies in my cooperation. We hope that will be happy cooperation in the future.

Mr James visiting our factory to discuss and solve the technical problems.

    On July 5th ,2016,Our new America customer James visited our factory to seek the solution to the technical problems of the stamping part.Allegedly,it is so difficult for those hardware processing suppliers he found before to produce this kind of stamping parts,so Mr James came here hoping our company can solve the problem.After careful analysis of the drawings and samples ,the main engineer of our factory and James have a comprehensive discussion about how to solve the the technical problems of the products.Finally,they found the best solution to the problem and James was so happy that he contracted with us to produce this kind of stamping parts.  Before he boarded the plane,he said to us that he  had great confidence in our company and hoped to build the long-term cooperationg with us.

Peter visited our factory for technical support.

    Peter is one of our America customer who is a great designer.he designed a new production on this year and he need a specific silver contact to support his new design.he visited our factory on 18 Dec 2012 and our engineer helped him solved his questions. He thanks us very mach because we help him confirm his design with the least amount of money. If you have some new design, our professional engineering department will do their best to help you!

OUR UK CUSTOMERS

British friend Philip visiting China and factory.

June 11, 2015, one of important customer in England visited our company. The first day we show him around our workshop.The next day, we visited Great Wall and Summer Place, we are happy to be customer?s tour guide and spread Chinese culture.The last day, our England friend went bank. It was nice to meet him,hope he enjoyed this travel, please come and visit China and our factory if any chance.

OUR AUSTRALIAN CUSTOMERS

Drew and John visited our factory and workshop

    On 24^{<span style="mso-spacerun: 'yes'; font-family: Arial; mso-fareast-font-family: 宋体; color: #000000; letter-spacing: 0.0000pt; text-transform: none; font-style: normal; font-size: 12.0000pt; mso-font-kerning: 0.0000pt; vertical-align: super;">th</span>} August 2017, Australian customers Drew and John came to visit our factory, visited the springs and automatic lathe parts production workshop and production equipment, who expressed great satisfaction and hope Cooperation happily in the future. At last, we had a dinner together.

Alex Coming China To Discuss With Us For One Design Of A Product.

    September 11^{<span style="mso-spacerun: 'yes'; font-family: Arial; mso-fareast-font-family: 宋体; color: #000000; letter-spacing: 0.0000pt; text-transform: none; font-style: normal; font-size: 12.0000pt; mso-font-kerning: 0.0000pt; vertical-align: super;">th</span>},2016,a new customer from Austria visiting our cnc milling workshop sought a reasonable design in accordance with his requirement.Our senior engineer Mr Lu analysis the function that he described carefully ,then discussed with him about what he needed,finally Mr Lu offered him a perfect design of his cnc milling parts and improvement scheme.He was so happy to signed a contact with us for producing this cnc milling parts for machinery parts.

OTHER COUNTRIES 

Malaysian customer Kuankeng visited our factory

    On 9^{<span style="mso-spacerun: 'yes'; font-family: Arial; mso-fareast-font-family: 宋体; color: #000000; letter-spacing: 0.0000pt; text-transform: none; font-style: normal; font-size: 12.0000pt; mso-font-kerning: 0.0000pt; vertical-align: super;">th</span>} August 2017, the Malaysian customer Kuankeng came to our factory to see the wood products to discuss the production processing of fan leaves,in our senior engineer's proposal to achieve a unified production methods, and under the sample orders.It was a happy day for her and us.

Egyptian customers Ayman came to visit our factory

    April 21, 2017, Egyptian customers Ayman came to visit our factory , respectively, saw rivets, silver contacts and stamping parts, through the measurement of the sample, the production workshop to watch, the customer is very satisfied, and on the spot under the order and prepaid $ 2,000.

Czech Friends Visiting Our Company The Third Time.

    October 20^{<span style="mso-spacerun: 'yes'; font-family: Arial; mso-fareast-font-family: 宋体; color: #000000; letter-spacing: 0.0000pt; text-transform: none; font-style: normal; font-size: 12.0000pt; mso-font-kerning: 0.0000pt; vertical-align: super;">th</span>},2016 our Czech friends visited our company again,before they came to China we prepared gifts with Chinese characteristics for them.When they received our gifts ,they felt so happy ,then we led them looked around Shenzhen city and discussed some lathe turning parts they felt interested in.It was a perfect day with them ,we all felt so happy!

Singapore Customer Found An Improvement Scheme From Us.

    October 14th,2016,our Singapore Customers came to our company seeking for an improvement scheme of electrical silver contact.Our engineer Mr Gao foced on in electrical silver contact for many years analysised their requirements and functions carefully,then he gave a reasonable improvement scheme for their electrical silver contacts , they felt very satisfied.

Three Brazil customers(Andre,Paulo and Valerla)visited our company.

    On October 25^{<span style="mso-spacerun: 'yes'; font-family: Arial; mso-fareast-font-family: 宋体; color: #000000; letter-spacing: 0.0000pt; text-transform: none; font-style: normal; font-size: 12.0000pt; mso-font-kerning: 0.0000pt; vertical-align: super;">th</span>} 2012, three Brazil customers?Andre,Paulo and Valerla)visited our company.we picked them up from Huizhou station and took them to our factory to see our workshop and productive power.on that day,we took them to visit the whole production process and our engineer answered their a lot professional questions.after that,we had delicious Chinese food together.at last,they were sent away to Huizhou station by our driver and me.it is a wonderful and happy time together with the three Brazil friends.

 CUSTOMER MESSAGE

                                                                                                                From mini

     We are a dynamic team.We often take part in all kinds of activities and experience a lot of challenging&exciting projects,which hone our will and improve our teamwork spirit.Our team become stronger and great-hearted.

BURNING IT, JUVENILE!

    June 15, 2017, organized by the Alibaba city of the summer war "burning it, juvenile!" Officially opened. Our company is actively involved in the first day of military training, the company's small partners who completed the perfect completion of each military project, are quite productive.

DINNER PARTY ACTIVITIES

    March 12, 2017, our company team in Dongguan, a Villa held dinner activities, during the fishing, barbecue and other games. After half a day of activities, we all passionate, endless laughter enjoy the fun of life.

CYCLING AND MOUNTAIN CLIMBING

    On Saturday, November 5, 2016, it was time to relax on weekends. In order to make our team more cohesive, the company's small partners spontaneously organized the riding and mountain climbing activities. We ride to the foot of the mountain, along the way to enjoy the city suburbs and the harmony of nature, and then began to climb until the top of the mountain, along the way to enjoy the magic of nature. It was a pleasant and memorable day.

2013 ALIBABA SPORTS

    On 10^{<span style="vertical-align: super;">th</span>} august 2013,the company LML took part in the sports meeting which was held by Alibaba.we participated in relay race, tug of war,seven-legged race,basketball,rope skipping and table tennis.At last,we got a gold medal in rope skipping and a gold medal in tug of war.The games let us know the importance of teamwork.