Sino Seiko Co., Limited (branded as SINOSEIKO) is a professional trading and supply company specializing in superhard materials (超硬材料) and industrial diamond products. Established in 2019 and headquartered in the Economic and Technological Development Zone of Zhengzhou, Henan Province, China — the global epicenter of superhard materials — Sino Seiko focuses on high-quality polycrystalline diamond (PCD), PDC cutters, synthetic diamond grits/powders, CBN (cubic boron nitride), and related cutting/tooling solutions.
Official website: sinoseiko.com
Zhengzhou’s Regional Advantages – Why the “Diamond Capital of China” Matters Zhengzhou and Henan Province dominate the global superhard materials industry (over 80–90% of China’s synthetic diamond production and a significant share worldwide). Key advantages include:
- Birthplace of China’s first synthetic diamond (1963 at Zhengzhou Research Institute for Abrasives & Grinding).
- Complete industrial chain: from raw synthetic diamond synthesis (high-pressure/high-temperature presses) to finished tools, abrasives, and applications.
- Massive scale: Hundreds of specialized factories, national key labs, and engineering centers (e.g., Zhengzhou High-tech Zone superhard cluster).
- Technological leadership: Advanced R&D in PCD/PCBN synthesis, micron powders, and high-precision tools.
- Cost & supply efficiency: Abundant raw materials, mature supply chain, and competitive pricing for global export.
- Innovation ecosystem: Proximity to leading players like Huanghe Whirlwind, Zhongnan Diamond, and Zhengzhou Three磨所 (ZZSM), enabling fast prototyping and customization.
Sino Seiko leverages Zhengzhou’s unmatched advantages to offer reliable, high-performance superhard products at competitive prices.
Core Products & Strengths
- PCD Cutting Tool Blanks – For woodworking, aluminum, composites, and non-ferrous machining
- PDC Cutters – Petroleum/gas drilling, mining, and geological exploration
- PCD Die Blanks – Wire drawing dies for high-strength cables and precision wire
- Synthetic Diamond Grits & Powders – Grinding, polishing, lapping in electronics, optics, and gem processing
- CBN (Cubic Boron Nitride) Products – Hardened steel turning, cast iron machining
- PCBN & PCD Inserts – Solid/carbided options for high-speed finishing
- TSP (Thermally Stable Polycrystalline) – High-temperature applications
- DTH Drill Bits & PDC Picks – Mining and construction tools
Key strengths:
- High hardness, thermal conductivity, and wear resistance
- Consistent quality with full traceability
- Custom sizes, grades (fine/medium/coarse), and shapes
- Competitive export pricing from Zhengzhou’s ecosystem
- Strong focus on international standards and customer specifications
Strategic Cooperation with Sino QTECH Industries Since 2021, Sino QTECH Industries Co., Limited (华谊进出口贸易有限公司) has been the authorized international sales agent for Sino Seiko, managing global inquiries, quotations, technical coordination, and logistics for key markets (North America, Europe, Latin America, Middle East, Southeast Asia, Australia).
Through this partnership, Sino QTECH has facilitated exports of PCD blanks, PDC cutters, diamond powders, and related products to machining shops, tool makers, oil/gas drilling companies, wire manufacturers, and precision industries worldwide.
Why Sino Seiko + Sino QTECH Industries? Sino Seiko delivers:
- Direct access to Zhengzhou’s world-class superhard supply chain
- Proven performance in cutting, drilling, drawing, and grinding
- Flexible customization and fast delivery
Sino QTECH Industries adds:
- Professional multilingual support
- Transparent agency-level pricing
- Third-party inspections (SGS, BV) and material testing
- End-to-end logistics: sea/air freight, export documentation, customs clearance
- Dedicated project management from inquiry to after-sales
We Are Actively Seeking Global Partners Sino QTECH Industries is expanding our network and seeking long-term partners for Sino Seiko superhard products, including:
- Distributors & importers of industrial diamonds/PCD/PDC
- Cutting tool manufacturers and regrinders
- Oil/gas/mining drilling companies
- Wire/cable producers needing diamond dies
- Precision machining shops in automotive/aerospace/electronics
Benefits for Partners
- Priority supply and stable pricing from Zhengzhou’s hub
- Competitive margins and flexible MOQ
- Technical datasheets, samples, and test reports
- Joint promotion at trade shows
- Dedicated account support
If you are a serious player in tooling, machining, drilling, or superhard applications and seek a reliable Chinese supplier backed by professional agency service, we invite you to partner with us.
Contact Sino QTECH Industries today for:
- Free samples and performance data
- Customized quotation and technical consultation
- Virtual tour or audit arrangement
- Partnership/distribution opportunities
We look forward to building long-term success in the global superhard materials market.
Sino QTECH Industries Co., Limited (华谊进出口贸易有限公司) Authorized International Agency for Sino Seiko Connecting Global Buyers with China’s Finest Superhard Materials & Industrial Diamond Solutions Zhengzhou – The Diamond Capital of the World