ABOUT US

Shandong Wangtianxia International Trade Co., Ltd. Official Introduction
Shandong Wangtianxia International Trade Co., Ltd., located in Jinan, Shandong, China, is a professional one-stop centralized procurement supplier in the water treatment industry with profound manufacturing heritage.
Our product line covers high-quality water purification solutions, including RO membranes, RO equipment, water softening equipment, ultrapure water equipment, UF equipment and wastewater treatment equipment.
We have established stable cooperative relationships with over 1,000 customers and accumulated numerous cross-industry successful water purification cases, committed to providing efficient and reliable one-stop water treatment supporting services.
Reverse Osmosis Membrane Series
The 1812-75G reverse osmosis membrane is tailored for residential RO systems, featuring a compact 1.…
Our LP-8040 membrane is engineered for heavy-duty industrial use. It provides stable, consistent pur…
HUAPAI ULP31-4040 reverse osmosis membrane features ultra-low pressure operation and high flow rate.…
HUAPAI 3013 reverse osmosis membrane delivers 400GPD stable high flow with 99.8% salt rejection. Eng…
Produces high-grade pure water for electronics, pharmacy and precision manufacturing.
Advanced membrane technology for reliable, high-purity water solutions.
Eliminates hard water scale and extends the service life of your water equipment.
RO Water Treatment Equipment Series
[video width=”720″ height=”1280″ mp4=”https://china-wangtianxia.com/wp-content/uploads/2026/04/4040视…
RO Reverse Osmosis Equipment Large Flow The RO Reverse Osmosis Equipment Large Flow is a…
Compact 50–200 L/h tap water purification system with 0.0001-micron RO filtration. Removes 98% of he…
This 3m³/h industrial reverse osmosis system delivers high-purity water (TDS ≤10ppm) with 98% desali…
This 0.5 ton per hour (0.5 T/H) two-stage reverse osmosis (RO) system is a fully…
Corporate Credit Qualifications

Why Choose Our Water Purification & RO Membrane Solutions

Business Philosophy
Professional focus, superior quality. Delivering premium products and production solutions for our clients.

Quality Inspection
Superior quality, strict management & robust tech. We self-check per global standards.

Quality Service
Customer & Credit First. Contract-abiding & integrity-driven. Trusted by global clients with a proven industry reputation.
Build a World-Class Corporate Image
Create value for life, build a trusted, responsible global brand. Deliver quality products & services, drive social progress, and set the standard for responsible corporate citizenship.
Creating New Market Demand
We deeply study customer needs, identify and lead future market opportunities with precise positioning. By grasping potential demands, we keep creating new market demand.
Exquisite Craftsmanship, Premium Quality
Quality is our lifeline. We deliver the best for customers, meet all their needs. We achieve what others can’t, and excel where others can.
Project Installation Cases
RO Membrane & Water Purification Equipment Project Installation Cases
Project Installation Cases
As a leading manufacturer of RO membranes and water purification systems, HUAPAI has completed hundreds of successful installation projects worldwide, covering diverse application scenarios from small-scale community water stations to large-scale industrial production lines.
Our turnkey solutions include system design, equipment supply, on-site installation, commissioning, and after-sales maintenance, ensuring stable, efficient, and long-lasting operation of water treatment systems. Our projects serve a wide range of industries:
- Community & Commercial Use: 24/7 self-service water vending RO systems, providing safe drinking water for residential areas.
- Food & Beverage Industry: Food-grade RO purification equipment for food production workshops, meeting strict hygiene standards.
- Photovoltaic & New Energy: High-purity RO water treatment systems for photovoltaic manufacturing processes.
- Industrial & Manufacturing: Customized RO solutions for industrial production, boiler feed water, and wastewater reuse.
With a professional engineering team and localized after-sales service, HUAPAI has established long-term partnerships with clients in the Philippines, Malaysia, Dubai, and other global markets, delivering cost-effective RO membrane and water treatment solutions tailored to local needs.







