32 production processes

Craftsman spirit, guaranteed for 60 years

Perfect and efficient nanny service system

Our promise

Our Commitment

Care for the brand with life | Guarantee quality with life

Eight Advantages
  • 28 years of professional pipeline research and development experience, and constantly upgrade unique advantages!

  • Produce

    The advanced equipment strictly follows the ISO9001 and 14001 labeling process to operate!

  • With complete varieties and clear selling points, we will continue to improve to meet the higher demands of our customers for health and environmental protection!

  • Brand

    "Laoshan" brand has been rated as "China Famous Brand", "Shandong Famous Trademark", "Qingdao Famous Trademark", "Contract-abiding and Trustworthy Enterprise", "Key Promotion and Application Products", and "China Green Environmental Protection Building Materials Products"!

  • Fast, efficient and perfect customer service system is rated as AAA enterprise of quality, service and reputation by national authoritative department!

  • Train

    Systematic professional training, to achieve mutual benefit and win-win, rich dream, strong industry benchmark!

  • Revere customers, build teams, advocate health, and continuously improve the overall competitiveness of the company!

  • Join

    Unified VI design, easy to join the ultimate customer experience, worry-free business in the whole process!

Scientific research and development, strive for innovation
  • Schematic diagram of ultra-quiet spiral single riser drainage system
  • Schematic diagram of inclined three-way combined high-rise drainage and ventilation system
  • Schematic diagram of H-tube high-rise drainage and ventilation system

PVC-U ultra-quiet spiral pipes and fittings

In view of the above problems, by studying the mechanism of noise generation and the situation of the drainage system, the ultra-quiet spiral single riser drainage system developed by our company has the following major advantages:

Green and environmental protection: The existing drainage system has a large instantaneous pressure change, which leads to the destruction of the water seal, causing the harmful gas in the pipeline to flow into the room, bringing harm to people's health.

Energy saving and consumption reduction: According to the GB/T50015-2003 "Code for Design of Building Water Supply and Drainage", the existing drainage system requires vent pipes to be set up above 10 floors.

Noise reduction: Due to the unique structure of the ultra-quiet spiral single riser drainage system, the sewage adheres to the inner wall of the pipe to form a spiral drop, avoiding the collision between water and air, and water and the pipe wall, reducing the vibration of the pipe and making the drainage system more effective. The noise is greatly reduced. The building drainage system with a noise index of less than 45 decibels has been tested by the national authority, which is much lower than the current noise of other building drainage systems, ensuring people's physical and mental health, and effectively improving the comfort of living and office environments.

Strong drainage capacity: The existing drainage system has chaotic flow patterns and large air pressure fluctuations in the riser. The water flow in the horizontal branch pipes forms a large water flow at the riser confluence and the water plug problem at the bottom of the riser cannot be solved, resulting in unbalanced pressure in the pipeline, causing upstream Negative pressure suction is formed in the pipeline, and positive pressure spray occurs downstream, which seriously affects the drainage capacity. The ultra-quiet spiral single riser drainage system forms a smooth air column in the center of the riser, which effectively ensures the pressure balance in the pipeline and greatly improves the drainage capacity of the system.

Product Customization

Focus on the pipe industry for 28 years, research and development | production one-stop service | quality assurance

  • Online consultation

    Consult the customer service online for preliminary communication

    Sign development agreement

    Clarify all kinds of expenses, sign development agreements, and customers pay

  • Technology docking

    Technical personnel of both parties conduct technical communication to determine functional requirements

    Product development

    Complete the development on time, produce samples on time to cooperate with product debugging

  • Production supply

    After the sample test is completed, enter the small batch production, and then receive the large batch order after the small batch