A team specializing in various underwater recovery operations, including rescuing drowning victims and retrieving lost items from parks and lakes. We utilize detection equipment in conjunction with divers to ensure both the success rate of recovery and the safety of diving operations. Since its establishment, our team has successfully recovered tens of thousands of jewelry pieces and valuable items for clients in the Yangtze River Delta region and other parts of the country, earning deep trust and appreciation from users, and being hailed by many as the "Master of Recovery"!
Companies specializing in underwater engineering, car recovery, rescue operations, recovery of valuables and jewelry, gate repair, underwater cutting, pipeline plugging, marine engineering, underwater services, and commercial diving services. Our scope includes reservoir and dam inspection and repair, hull and dock diving inspections and repairs, underwater welding and cutting, diving recovery and obstruction removal, pipeline laying, underwater videography, caisson sinking, caisson manufacturing, bag concrete, wire saw cutting, bridge cutting, concrete, and more. We provide services to various owners and construction companies such as ports, bridges, shipyards, power plants, reservoirs, wastewater treatment plants, waterworks, chemical plants, refineries, China Railway Bridge Bureau, and municipal engineering projects.
Tianjin, Shanghai, Chongqing. Shijiazhuang, Hohhot, Shenyang, Changchun, Harbin, Nanjing, Hangzhou, Hefei, Fuzhou, Nanchang, Jinan, Zhengzhou, Wuhan, Changsha, Guangzhou, Nanning, Chengdu, Guiyang, Kunming, Xi'an, Lanzhou, Xining, Yinchuan, Urumqi, Dalian, Wuxi, Ningbo, Wenzhou, Xiamen, Qingdao, Shenzhen, Yantai (36 cities)
Divers must not operate in areas with unstable underwater environments prone to collapse. Prior to diving, it is mandatory to clearly determine the water depth, work content, and underwater operation methods. Divers must wear proper, secure attire and must not substitute a signal line for a safety line. When descending or ascending, the air supply hose, signal line, and descent guide line must be kept separate. After the diver reaches the intended depth, the dive helmet should be ventilated for 2-3 minutes before beginning work, and the air supply hose and signal line should be properly arranged. Communication between the surface and underwater should be concise, affirmative, and avoid omitting the subject. When adjusting the air supply using a waist-mounted valve, the air supply should be slowly regulated according to the rate of descent or ascent. Equipment for deep-water diving operations must undergo rigorous inspection and multiple successful adjustments before use. Personnel using imported diving equipment must be familiar with the equipment's performance, understand how to use it flexibly, and be aware of precautions. Huahang Underwater Engineering Co., Ltd., "Established with Excellence, Fully Certified." The basic operation process for underwater shipwreck recovery includes gathering information and conducting surveys. We would like to clarify in advance that no company or individual can guarantee successful recovery. However, please rest assured that professional recovery teams are meticulous and factual, and will not engage in any illegal activities. The recovery team possesses precise underwater search sonar equipment, which uses sound waves to detect and search underwater objects, people, ships, vehicles, and riverbeds.
Measures for Diving Operations:
Diving construction operations must be conducted in accordance with the regulations of the Diving Salvage Industry Association.
Diving construction operations must adhere to the principles of prevention-first, rigorous organization, and legal compliance to ensure the personal health of divers.
Operate only after regular equipment inspections confirming performance compliance.
Divers report their daily conditions to the dive leader before entering the water.
Dive Team Responsibility System, work logs must be filled out for each shift.
Two diving teams must check the rope and air supply hoses at all times during the same construction to prevent entanglement.
Strictly control the working hours and cycles of divers to ensure they have adequate rest.
Prohibited for non-divers to conduct underwater operations.
Ensure technical briefing, everyone signs in.
Diving operations are strictly conducted in accordance with diving operation procedures.
Adhere strictly to operational procedures, display warning signs for civil construction, and create a strong atmosphere.
Ensure clear communication, use in conjunction with a rope, specifically (tighten once, loosen twice, land thrice).
Around the clock, our hardworking and enduring construction teams at Hua Hang Company are dedicated to serving you. Are you still troubled by how to handle underwater operations? Hua Hang Underwater Engineering Co., Ltd. offers services from every construction team. Underwater operations require meticulousness and physical strength; our divers are robust and have over a decade of diving experience, seasoned "experts"! Choosing Hua Hang is a worry-free choice! Our diving company's main business categories include: underwater recovery, underwater filming, underwater sealing, underwater dredging, underwater cutting, underwater welding, underwater cleaning, underwater clearing, underwater obstacle removal, underwater photography, underwater shooting, underwater mud removal, underwater leveling, reservoir sealing, underwater measurement, underwater maintenance, underwater inspection, underwater exploration, underwater demolition, underwater photography, underwater piling, underwater hole repair, underwater recovery, underwater filling, underwater sealing, and underwater recovery of valuable items from 1 to 60 meters deep. Divers involved in underwater operations should have a diver's license, a health certificate, and personal diving records. Upon receiving your call, our recovery team will patiently explain the recovery methods, utilizing advanced equipment and our company's strong technical capabilities to provide satisfactory services. Our recovery team consistently maintains excellent service attitudes, values credibility, arrives on time, and ensures thorough and careful operations for safety.
The project manager is Da Hai. Complete pipeline installation. Load-bearing wall door openings/drilling services for wall holes, to meet more clients and property owners. Before the recovery operation, an application for a navigation notice must be submitted according to the regulations of navigation traffic law. When the recovery operator conducts recovery operations, there must be steel reinforcement inside. If holes are drilled at the top or bottom, it will damage the steel structure of the beam, leading to a reduction in the building's structural integrity. Divers should carry diving knives for underwater operations, and it is advisable to have them when working in deep water. What are the requirements for concrete cutting dimensions? This is also a concern for many consumers. Only on this basis. Our service scope covers, mainly business operations. Underwater services welcome cooperation. First, we need to understand what is included in underwater operations, including underwater ship recovery and object recovery. Underwater welding includes installation and welding of onshore and underwater steel structures and components: underwater cutting projects use underwater wet welding, dry welding, underwater CO2 gas shielded welding, underwater plasma cutting, and other methods to install and dismantle underwater vessels, platforms, underwater pipelines, and steel structures.
Diving operations are also on the rise, with increasingly stringent requirements. Huahang offers you our services: guaranteed quality and fair pricing. We specialize in diving engineering. We provide diving engineering services with our technical team, diverse underwater engineering solutions, catering to clients from various regions, and creating personalized services. We hope for your participation to continuously enhance our diving expertise, construction capabilities, and expand mutual services and exchanges, fostering mutual benefits and opening a new chapter in the digital economy. Dedication and teamwork are the sources of power for our corporate development. Pragmatism and dedication are the fundamental principles of our spirit. Daily progress and sincere service are the core of our Huahang Underwater Company's corporate culture. Engineering diving, also known as commercial diving, is a professional diving activity, a true technical endeavor. It primarily involves underwater engineering work in rivers, reservoirs, and the like, but today, engineering diving is more frequently serving offshore oil drilling operations. Technical diving is not a leisure activity.
Engineering diving teams, as the diving work force serving the province, have shown significant growth and progress in diving operations over the years, driven by the rapid economic and urban development. The company primarily undertakes diving projects such as: underwater structure reinforcement, welding and cutting of underwater steel structures, installation and removal of pier caissons and steel cofferdams, installation of anodic and cathodic protection lines for pipeline corrosion control projects, underwater filming, photography, recovery, underwater obstacle removal, leak plugging, wharf and power plant gate operations, as well as municipal sewage pipeline plugging and dredging projects, and other underwater tasks. Underwater recovery includes operations to retrieve sunken vessels and underwater objects. Underwater welding encompasses both on-water and underwater steel structure and component installation and welding work: utilizing underwater wet welding, dry welding, and CO2 gas shielded welding, underwater plasma cutting, and other methods for underwater installation and removal of vessels, underwater pipelines, and steel structures, with high efficiency.
We boast advanced diving equipment, underwater "eyes" sonar, and experienced divers, offering customized services to our clients. Based on the information provided by the owners and the actual on-site conditions, we promptly formulate precise underwater operations plans and deliver services to our clients. To meet the diverse needs of our clients, we have equipped (89) diving and recovery teams across various cities and counties in our country. We can respond to each user's needs promptly and provide swift diving services. Huahang Company, in the field of underwater engineering, works hard, strives for excellence, ensures safe diving, treats clients as friends, and becomes a long-term partner! We look forward to collaborating with you. The company adheres to the principles of honesty in service and serving the public, and tirelessly works towards win-win collaborations. We drive company development with a strong corporate culture to better serve the public. Since its establishment, the company has always upheld the宗旨 of focusing on the client and honesty, dedicated to providing high-quality, timely diving gear.
When considering all underwater engineering operations, we continuously negotiate and discuss to refine every critical point, ensuring safe production. All personnel involved in underwater engineering must be meticulous and rigorous. The diving team must be unified to tap into greater potential! Our company has a clear "strategy" for diving services, with managers and executors adhering to the unit's regulations to serve the public and excel in underwater engineering. Since its establishment, Hua Hang Company has completed various underwater construction tasks for numerous owners and clients. It's our accumulated instinct, and rigorous operations are a consistent requirement of Hua Hang people, firmly grasping responsibility and delivering high-quality construction. In every day of future operations, we will maintain the requirements for various underwater operations and further refine the quality of diving services. Trust us to provide you with an "extraordinary" underwater operation service. In special circumstances, we can arrive at the scene within 2 hours and resolve issues within 24 hours.
