echo sounding20+ factories verified

Chongqing Gold Mechanical & Electrical Equipment Co., Ltd is a high-tech enterprise for researching, designing, developing and producing scientific and measuring instruments. With its continuous drawing of lessonas, unremitting innovation and borrowing of advanced technology from both at home and abroad, our company is now becoming a professional manufacture of oil tester, electric tester, laboratory instrument, road building instrument and geophysical equipment.

Shanghai Apekstool was founded and based in Shanghai, specializing in the manufacturing and sales of Surveying equipment. We are dedicated to being a professional provider for survey equipment. Our goal is to provide the best products and excellent service to our customers all over the world.

Keiward New Materials (Jinan) Co., Ltd. Was established in 2025. It is a foreign trade enterprise that was spun off from the factory and specializes in the export of decorative wall panels. Established in 2025, Keiward New Materials (Jinan) Co., Ltd. is an independent factory specializing in the export of wall panels and decorative panels.

Nanjing Haoce Surveying And Mapping Technology Co., Ltd. is a company to provide professional surveying instruments and surveying service, and with rich experience in export trade, We have many customers abroad.

Shangrao Haodi Imp& Exp Trading Co., Ltd is a professional company in high precision geographic surveying & Mapping equipment. Our Main products are GPS RTK, total station, SLAM Scanner, Survey Drone, theodolite, automatic level, laser plummet and other surveying accessories. We have a high market reputation because we're not only provide high quality products, but also excellent customer & Technical supports.

Shanghai Hexin Survey Instrument Co., Ltd has 8 years' experience in geodetic surveying and cadastration surveying. We are a professional and leading enterprise in the surveying industry in Mainland China. We are specialized in the R&D and manufacturing and sales of all kinds of surveying products, including total station, electronic theodolite, electronic distance meter, automatic level, laser level, reflector prism, surveying accessory, GPS receiver, mapping software, etc.

Being the Shipyard's Branch Representative, we, Hangzhou Taihang Technology Import&Export Co., Ltd, have been established with the support of our NINGBO ZHENHE SHIPYARD. Meanwhile we have our own factory with laser cutting machine to provide CKD kits.

Sinomusic enterprise is one of leading supplier in bowed instruments and stringed instruments area. We provide violin, viola, cello, double bass, guitar, bass, ukulele and accessory in the market. Nowadays, we have both brand sinomusik and aiersi. Especially our aiersi brand guitar and ukulele are hot sale in the market. We have dealers to sell our aiersi brand models over 75 countries.

Shanghai Newdi Navigation Technology Company Limited (NEWDI) was established in 2014. NEWDI is engaged in providing high-precision surveying and mapping instrument. Main product is GNSS receiver, total station, level, drones, 3D scanner, echo sounder and USV. Our products is professional for land survey, construction, marine survey, GIS and mobile mapping.

AVS (Ningbo) Industrial Co. Ltd., by virtue of professional standards and mature technology in the field of automation, is rapidly rising in the field of car audio. We dedicated ourselves to the design, development, and production of all kinds of car audio accessories, cables & Wires, capacitors, modified connectors, terminals, and other variety of vehicle frames for electronic products (including GPS vehicle frames, car phones, and PDA supports). Our company also specializes in plastic packaging, PVC pack boxes, cylinders, and many other products. Having accumulated many years of production experience, we are devoted to the wider usage of PVC, PET, PS, PP, flocking and other sheet products which are asked for high difficulty and high quality.

HSTD Group is a solution provider specializing in high-end 2D and 3D vision modules, offering a full-stack vision solution encompassing cutting-edge technologies such as optical chip design, photonic chip packaging, and software algorithm development.  

Originally founded in 2002, WINSAFE Technology Co., Ltd. is a private high-tech entity specialize in CCTV and video surveillance products. We design\produce and sell all kinds of CCTV products and video conference products that are of high quality\good service and competitive prices to overseas customers

Ninglu Technology Co., Ltd. is Norway Skipper China joint venture enterprise, and for over 10 years, it has become one of China's leading technology solution provider of marine equipments supplying a wide range of Marine Equipments and Accessories as follows:

Founded in October 2001, Lucky star is headquartered in Quanzhou City, Fujian Province. With wholly owned factory called "FORWIN HOME" which is approved by DISNEY and two branch offices in Chenghai, Guangdong and Yiwu, Zhejiang, our annual turnover is nearly 10 million US dollars.

ComNav Technology is dedicated to being an innovator and leader in high-precision GNSS technologies and applications. Until 2024, it has sold its products and solutions to 140+ countries with 800, 000+ units modules / receivers in 10+ different industries, incl. Land survey, machine control, UAV, UGV, deformation monitoring, personnel positioning, precision agriculture, marine.

Power & Grace specializes in design and manufacturing of Public Address System (PA), Professional Audio System and Portable Speaker Series. With power amplification, loudspeaker, and PA system management engineering resources all located under one roof. Power & Grace uniquely leverages these technologies to deliver products and systems that far outperform the sum of their parts - providing compelling solutions for audio and professional installed sound for customers worldwide. Power & Grace advances in manufacturing and quality control processes. The company manufactures in its 8, 000 square meter, state-of-the-art factory, located in Guangzhou. Utilizing a compliment of demand planning, parts procurement, operations and logistics, computer-controlled system, and rigorous testing and control, our facility is designed with build-to-order flexibility, giving the company unprecedented ability to respond to customer needs while keeping both parts and finished goods inventory at well-maintained levels.

Helpyou Group Co., Ltd is a professional network solutions supplier which was built in 2005. Since the establishment, we sincerely cooperated with clients and trade companies all over the world with a serious working attitude. The business was expanded and the turnover was increased every year. Our company agents the products of noted communication equipment manufacturers, they are Huawei, Cisco, DELL, Ruckus, Fortinet, Polycom, Yealink, Maxhub, Axis, etc. We developed import and export business and established long-term stable cooperation and relationship with companies in over one hundred countries from Northern Europe, Oceania, America, Southeast Asia, the Middle East. We have accumulated rich experience in customer service simultaneously. Helpyou Group Co., Ltd earnestly implements national laws and policies, abide by the general international business practices, keep the principle of equality and mutual benefit. According to superior service and win-win business purpose, we set up and develop a partnership between our customers in each country and region, connect the international and Chinese market. The company always takes integration of the advantages of import and export in order to provide domestic and international clients with superior service. Over a decade, today we will stand on a higher starting point and expect to accomplish remarkable prosperity with concerted efforts!

Shenzhen Grand Technology Co., Ltd began in 2000 in Shenzhen, China. It has been specialized in producing and developing Amplifiers for musical instruments for more than 10 years. Main products are including Electronic Drum Sets, Electric Drum Kits, Acoustic Piano, Grand Piano, Acrylic Piano, Digital Piano, Tube Amplifiers and Solid State Amplifiers for Electric Guitars, Tube Amplifier Heads and Combos, Guitar Bass Amplifiers, Keyboard amplifiers, Electric Drum amplifiers, Amplifiers powered by storage battery, multifunction amplifiers, Hand Wired All Tube Guitar Amplifier, Effect Pedals, Electric Guitar, Electric Guitars, Acoustic Guitars, Ukulele, Guitar Kits, etc there are more than 200 different models with different specifications. Over the years, we have been cooperating with many big brands and famous companies to develop products. Products are selling to dozens of areas and countries including Europe, South and North America, Asia, Oceania etc. Products have received good feedbacks and become popular among customers, share high reputation from domestic and foreign markets. Hope we can cooperate with more customers and join hands together to bring the wonderful music to all the people around the world.

Our company named Nanjing Longjun Survey Instrument Co., Ltd., changed from Nanjing Longteng Survey Instrument Co., Ltd.

Nantong Saiyang Electronics Co., Ltd. Was formally established in 2003. The company is located in Maipu Technology Park, Chongchuan District, Nantong City, Jiangsu Province.