- Release on 2022-01-17 Introduction of Continuous Mesh-belt Conveyor and Gas Controlled Heat-Treatment Furnace
- Release on 2022-01-17 Safe operation process of thread rolling machine
- Release on 2022-01-17 Analyze the work before zinc plating line
- Release on 2026-10-30 Bolted Joint Reliability: Preload, Torque Control, Loosening Mechanism and Fastener Failure Root Cause Analysis
- Release on 2026-10-30 Fastener Surface Finishes: Zinc Plating, Hot‑Dip Galvanizing, Zinc Flake and Passivation Selection Guide
- Release on 2026-10-30 Fastener Property Classes and ISO Standards: A Complete Guide to Carbon Steel and Stainless Steel Grades
- Release on 2026-10-30 Cold Heading and Thread Rolling: Core Forming Technology for High‑Volume Industrial Fasteners
- Release on 2026-10-29 Bi-metal rivet contact machine
- Release on 2026-10-29 Advantages of Heading Machine for Screws
- Release on 2026-10-29 Two Die Four Strike Heading Machine
- Release on 2026-10-28 Thread Rolling — Precision Thread Forming for Reliable Fasteners
- Release on 2026-10-28 Continuous Heat Treatment — The Key to Stabilizing Fastener Mechanical Performance
- Release on 2026-10-28 Cold Heading — The Foundation of Modern Fastener Manufacturing
- Release on 2026-10-26 Bolt Plant Setup in 2026: Layout, Utilities and Equipment Checklist
- Release on 2026-10-26 How to Configure a Complete Fastener Production Line in 2026: From Wire Rod to Galvanized Bolt
- Release on 2026-10-26 Continuous Mesh Belt Furnace – Automatic Heat Treatment Line for High-Volume Fastener Production
- Release on 2026-10-26 Multi-Station Cold Heading Machine: High-Speed Cold Forging Equipment for Precision Fastener Manufacturing
- Release on 2026-10-26 Thread Rolling Machine: Cold Forming Equipment for High-Strength Precision Fastener Production
- Release on 2026-10-22 Harbin Rainbow Technology Introduces Upgraded Flat Die Thread Rolling Machine for High-Precision Fastener Thread Production
- Release on 2026-10-22 Harbin Rainbow Technology Launches High-Efficiency Multi-Station Nut Cold Heading Machine to Expand Fastener Forming Product Line
- Release on 2026-10-22 Harbin Rainbow Technology Launches Upgraded Multi-Station Bolt Cold Heading Machine for High-Efficiency Fastener Manufacturing
- Release on 2026-09-30 Principle and Advantages of Punching Flat washer
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Harbin Rainbow Technology Co., Ltd.