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Harbin Rainbow Technology Co., Ltd.Address:C2-02 Handi Building,Songbei Distr.,Harbin,ChinaPostal Code:150028Web site address:http://www.fastenerequip... Contact Now
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What is Cold Forging – Cold Forging Process, Materials, Uses, Advantages & Disadvantages

The Complete Guide to Zinc Plating: All You Need To Know

How does a thread rolling machine work

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The Relationship Between Natural Gas and MMBtu

Working principle of nut tapping machine

Nut tapping machine is a kind of machining equipment that processes internal threads, screws or teeth buckles on the inner side of the holes of variou...

Thread Rolling

Tightening bolts can not be ignored friction can cause problems to solve the problem

fortensionbolt, The friction force is a factor to be reckoned with. Bolt friction joint has been in existence, it may be part of the reason that cause...

Difference between hot dip zinc and hot dip galvanising

Hot-dip zincing and hot-dip galvanising are two different processes for corrosion protection of metals, with hot-dip zincing usually providing better ...

When to Use Spring Washers: A Comprehensive Guide

Analysis of the principle and function of spring washers

In all kinds of mechanical connections, the anti-loosening of bolts is a very important link, and there are many ways to prevent loosening of bolts in...

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China Fully Automactic Factory Good Price Bolts and Nut Part Cold Forging Machine manufacturer

Fully Automactic Factory Good Price Bolts and Nut Part Cold Forging Machine

high quality hydraulic forging press bolt making machine power hammer cold forging machine

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China 2026 Factory Good Price Fully Automatic Different Nut Washer Assembly Machine manufacturer

2026 Factory Good Price Fully Automatic Different Nut Washer Assembly Machine

The nylon nut washer inserting machine produced by Rainbow is suitable for Nylon Lock Nut, Anti-Loosing Nut etc. we have big share in domestic market,...

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China Fully Automatic High Output Low Price 4 Spindle Nut Tapping Machine manufacturer

Fully Automatic High Output Low Price 4 Spindle Nut Tapping Machine

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China.
We have more than 30 years experiences in supplying all kinds of fastener equipment, such as Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc. to customers all over the world.

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China 2026 Hot Sale Fully Automatic Screw Bolt Stud Thread Rolling Machine manufacturer

2026 Hot Sale Fully Automatic Screw Bolt Stud Thread Rolling Machine

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China.
We have more than 30 years experiences in supplying all kinds of fastener equipment, such as Bolt Maker, Nut Maker, Cold Heading Machine, Thread Rolling Machine, Wire Drawing Machine, Heat Treatment Furnace and Zinc Plating line, etc. to customers all over the world.

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China Rainbow Good Price Fully Automatic M16-M20 Nut Part Forming Machine Cold Forging Machine manufacturer

Rainbow Good Price Fully Automatic M16-M20 Nut Part Forming Machine Cold Forging Machine

High speed nut former, nut making machine,nut forging machine to make hex,flange, nylock nut and special nut parts.

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China 2026 Hot Sale Good Price Fully Automatic Screw Making Machine manufacturer

2026 Hot Sale Good Price Fully Automatic Screw Making Machine

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

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China High Speed M4 Screw Heading Machine for Fastener Production manufacturer

High Speed M4 Screw Heading Machine for Fastener Production

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

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China High speed M3 Screw header for Fastener manufacturing Heading Machine manufacturer

High speed M3 Screw header for Fastener manufacturing Heading Machine

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

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China Hot Sale Continuous Mesh Belt Furnace for Fasteners and Parts manufacturer

Hot Sale Continuous Mesh Belt Furnace for Fasteners and Parts

Composition entire heat treatment line as follows:
Automatic feeder → → washing machine before
Hardening furnace oil quenching tank → →
Rear wiper steel furnace → →
Electrical control cabinet.
Buyers can flexiblely composition processing lines, due to the different needs

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China High Precision Screw Thread Rolling Machine at Manufacturer Price manufacturer

High Precision Screw Thread Rolling Machine at Manufacturer Price

China Fully automatic 1 die 2 blow cold header for Bolts and Screws Studs manufacturer

Fully automatic 1 die 2 blow cold header for Bolts and Screws Studs

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

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China M8 Cold heading  machine Drywall screws Making Machine manufacturer

M8 Cold heading machine Drywall screws Making Machine

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

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China Automatic High Speed Screw Cold Heading Machine Screw Header manufacturer

Automatic High Speed Screw Cold Heading Machine Screw Header

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

More
China Taiwan Customized Continuous Mesh Belt Furnace Heat Treatment Furnace manufacturer

Taiwan Customized Continuous Mesh Belt Furnace Heat Treatment Furnace

Composition entire heat treatment line as follows:
Automatic feeder → → washing machine before
Hardening furnace oil quenching tank → →
Rear wiper steel furnace → →
Electrical control cabinet.
Buyers can flexiblely composition processing lines, due to the different needs

More
China High Quality Screw Thread Rolling Machine Bolt Threading Machine manufacturer

High Quality Screw Thread Rolling Machine Bolt Threading Machine

China Hydraulic Thread Rolling Machine High Speed Cold Thread Roller for Bolt Screw Stud Fastener Production Line manufacturer

Hydraulic Thread Rolling Machine High Speed Cold Thread Roller for Bolt Screw Stud Fastener Production Line

Model: CY06Z
Diameter range: 3-6mm
Output: 165-185pcs/min
Max. thread length: 75mm
Moving die size: 90x105x25
Power: 4Kw

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China Continuous Mesh Belt Furnace Electric Heat Treatment Furnace for Screw Bolt Nut Spring Quenching Tempering Annealing Line manufacturer

Continuous Mesh Belt Furnace Electric Heat Treatment Furnace for Screw Bolt Nut Spring Quenching Tempering Annealing Line

Composition entire heat treatment line as follows:
Automatic feeder → → washing machine before
Hardening furnace oil quenching tank → →
Rear wiper steel furnace → →
Electrical control cabinet.
Buyers can flexiblely composition processing lines, due to the different needs

More
China One Die Two Blow Header Cold Heading Die for Rivet Making Machine manufacturer

One Die Two Blow Header Cold Heading Die for Rivet Making Machine

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

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China High Hardness One Die Two Blow Header Mold Fastener Forming Header manufacturer

High Hardness One Die Two Blow Header Mold Fastener Forming Header

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

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China Fastener Forging Mould One Die Two Blow Header, High Precision One Die Two Blow Header Die for Bolt Manufac manufacturer

Fastener Forging Mould One Die Two Blow Header, High Precision One Die Two Blow Header Die for Bolt Manufac

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

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China Double Blow One Die Header Machine Die, One Die Two Blow Header Mold for Screw Bolt Rivet Making manufacturer

Double Blow One Die Header Machine Die, One Die Two Blow Header Mold for Screw Bolt Rivet Making

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

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China One Die Two Blow Header Cold Forging Header Die, Double Blow Hex Bolt Forming Header Mold for Fastener Production manufacturer

One Die Two Blow Header Cold Forging Header Die, Double Blow Hex Bolt Forming Header Mold for Fastener Production

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

More
China Most popular cold heading  machine for M8 sefl tapping screws with high capacity manufacturer

Most popular cold heading machine for M8 sefl tapping screws with high capacity

Place of Origin: China
Application: Machinery & Hardware & Others
Condition: New
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: One Year
Brand Name: Rainbow
Voltage: 380V
Warranty: One Year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Other.
Packaging Details: Plywood Cases

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China High Speed Automatic Cold Heading Machine | Multi-Station Cold Forging Equipment for Bolt Screw Nut Fastener Manufacturing manufacturer

High Speed Automatic Cold Heading Machine | Multi-Station Cold Forging Equipment for Bolt Screw Nut Fastener Manufacturing

This automatic cold heading machine is professional cold forging equipment designed for mass production of fasteners and precision metal parts. Adopting mature cold forming technology, it completes workpiece head forming at room temperature without heating, which effectively cuts production cost and improves processing efficiency.

The equipment is built with a high-rigidity integral machine body, matched with precision die system and fully automatic wire feeding mechanism. It features stable high-speed operation, high forming dimensional accuracy and low failure rate, supporting continuous uninterrupted production, greatly reducing labor input and ensuring consistent quality of mass-produced products.

It is widely used in fastener manufacturing, automotive hardware, electronic components, construction hardware and other industries, suitable for producing bolts, screws, nuts, rivets, studs and various standard & non-standard special-shaped cold heading parts. We provide full services including pre-sales solution customization, on-site installation guidance and lifelong technical support to match different production demands of customers.

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