About Us
Estrella Polar Technology Co., Limited
More Than a Manufacturer—Your Trusted Sourcing Partner in China
Established in 2012, Estrella Polar Technology Co., Limited is a leading manufacturer and supplier specializing in prestressed construction equipment, backed by over 20 years of expertise in product design and manufacturing. We provide high-quality prestressed anchorage systems, hydraulic prestressing jacks, oil pumps, strand pushing machines, corrugated ducts, corrugated duct making machine, PC strands, galvanized steel strips, and more—delivering reliable solutions for the global construction industry.
Beyond our own production, we are also a professional trading company with over a decade of international trade experience. Our strong supply chain network in China allows us to efficiently source and supply all products
We serve as a full-service supply chain partner, leveraging 10+ years of international trade experience to help clients source all products of clients wants, for exsample, construction materials, fire safety products, solar components, hardware, and more.
How We Support Your Procurement Needs:
Factory Sourcing & Verification
We identify reliable suppliers and conduct on-site inspections to ensure quality compliance.
Quality Control & Negotiation
Our team handles factory audits, sample checks, and price negotiations on your behalf.
End-to-End Logistics
From packaging to shipping, we arrange cost-effective, hassle-free transportation (sea/ air/ express).
One-Stop Solution
Avoid dealing with multiple vendors—we consolidate orders and manage cross-industry procurement efficiently
Manufacturing Details
Why Choose Us
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20+ Years Technical Expertise
Our in-house engineering team ensures top-tier product design and manufacturing quality.
Factory Direct Pricing
Eliminate middlemen and enjoy competitive costs as both manufacturer and trader.
Rigorous Quality Control
We conduct factory audits, material inspections, and pre-shipment checks to protect your interests.
One-Stop Cross-Industry Sourcing
From prestressed materials to solar products, we simplify multi-category procurement.
On-Demand Factory Visits
Our local team accompanies clients for inspections, negotiations, and production monitoring.
Global Logistics Management
We handle shipping documentation, customs clearance, and door-to-door delivery.
FAQ
Choose us for reliable, custom-designed films, elevating your business with quality, innovation, and exceptional service.
Q1. Are you factory or trading company?
A. We are a leading prestressed construction equipment manufacturer with over 20 years of experience. We are also a professional international trading company, focusing on providing cross-industry procurement solutions for customers from all walks of life.
Q2. What products do you specialize in?
A: We are a leading manufacturer and supplier of:
Prestressed construction equipment (anchors, jacks, ducts, PC strands)
Galvanized steel strips for corrugated ducts
Cross-industry sourcing services (For example fire safety, solar products, etc.)
Q3. Are your products certified?
A. Yes! Our products comply with ASTM, EN, ISO, and other international standards. We provide full certification documentation upon request.
Q4. Can you customize products?
A. Absolutely. We offer tailored solutions for dimensions, materials, coatings, and packaging. Contact us with your specifications.
Q5. Do you offer factory audits and quality control?
A: Yes. We provide:
✔ On-site factory inspections
✔ Material testing & sample approval
✔ Pre-shipment quality checks
Q6. What’s your lead time?
A: Standard products: 15–30 days after order confirmation
Custom orders: 30–45 days (depending on complexity)
Q7. What shipping methods do you offer?
A: We arrange sea/air/express shipping worldwide, including:
FOB, CIF, EXW terms
Door-to-door delivery (optional)
Q8. How do you ensure product quality?
A: We implement:
✅ Raw material inspection
✅ In-process quality control
✅ Final random testing
Q9. Can you assist with sourcing non-construction products?
A: Yes! Leverage our 10+ years of China sourcing experience for:
Fire safety equipment
Solar components
Industrial hardware
Q10. How can I request a quote?
A: Email us at polarimok@ptgrouting.com with:
-Product name/quantity
-Technical requirements
-Shipping destination
Q11. How to order?
Simple Ordering Process.
Step 1. Initial Contact & PI Confirmation：Email us your requirements; our sales team will promptly respond with details；Confirm the Proforma Invoice (PI) by signing and stamping；Arrange a 30% deposit payment and share the bank slip；Upon receipt, we will prepare materials and initiate production planning.
Step 2. Production & Updates: We provide regular updates (photos/videos) on:
✓ Manufacturing progress
✓ Quality control checks
✓ Packing and loading status
Step 3. Shipping Options: Our logistics service: We propose air/sea freight options for your approval before booking.
Step 4. Final Payment & Documents: Pay the 70% balance before shipment, We then arrange:
✓ Telex Release (for sea shipments)
✓ Full shipping documents (B/L, invoice, packing list, etc.) for customs clearance.
Step 6. Feedback & Support: Inspect the goods upon arrival and share your feedback. Our team remains available for post-delivery assistance.