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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

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...

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 ...

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...

Thread Rolling

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

What Is Cold Forming?

What's self-tapping screw?

Self-tapping screws: similar to machine screws, but the threads on the screw for special self-tapping screws with threads. Used to fasten the connecti...

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...

High speed installation cold forging machine bolts and nuts making machine for screw

Keywords : Made in China

China 2 Die 4 Blow Screw Making Machine manufacturer

2 Die 4 Blow Screw Making Machine

Multi stations Metal Forging Machinery Cold Header Heading Machine Screw Making Machines cold heading machine price

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China Hot Sales Cold Heading Machine with Dies manufacturer

Hot Sales Cold Heading Machine with Dies

Multi stations Metal Forging Machinery Cold Header Heading Machine Screw Making Machines cold heading machine price

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China Factory Price Screw Making Machines Screw Header Machine manufacturer

Factory Price Screw Making Machines Screw Header Machine

Multi stations Metal Forging Machinery Cold Header Heading Machine Screw Making Machines cold heading machine price

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China High Speed Cold Heading Screw Header Machine manufacturer

High Speed Cold Heading Screw Header Machine

Multi stations Metal Forging Machinery Cold Header Heading Machine Screw Making Machines cold heading machine price

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China Full Cover Cold Forging Machine for Drywall Screws Factory Price Cold Heading Machine manufacturer

Full Cover Cold Forging Machine for Drywall Screws Factory Price Cold Heading Machine

Multi stations Metal Forging Machinery Cold Header Heading Machine Screw Making Machines cold heading machine price

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China Full Cover Cold Forging Machine for Drywall Screws manufacturer

Full Cover Cold Forging Machine for Drywall Screws

Multi stations Metal Forging Machinery Cold Header Heading Machine Screw Making Machines cold heading machine price

More
China 6 Station Part Former Cold Heading Machine Bolt Nut Making Machines at Factory Price manufacturer

6 Station Part Former Cold Heading Machine Bolt Nut Making Machines at Factory Price

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(Ningbo), one Thread rolling machine factory(Ningbo), one Heat treatment furnace factory(Suqian) and one Electro plating equipment factory(Wuxi).

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, With our reputation increasing and our team becoming more professional, we have experienced a significant growth in business during the recent years.

Nowadays, more and more reputed companies compete in a long-term cooperation with us.We abide by the principles of honesty, credibility, and mutual-benefit. Our motto is “ONCE BUSINESS, FOREVER FRIENDS”, we will do our best to serve clients at home and abroad. Due to our top-notch professional knowledge and rich trad experience, we have seen our market developing ability and actual business growth with an increasingly faster pace. We sincerely look forward to working with you. Let's build a great future together!

More
China Automatic 7 Station Nut Making Machine Heavy Duty Nut Former Cold Forging Machine manufacturer

Automatic 7 Station Nut Making Machine Heavy Duty Nut Former 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 High Speed Multi Station Cold Former for M12 M14 Hex Nut Former manufacturer

High Speed Multi Station Cold Former for M12 M14 Hex Nut Former

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 Long Service Life High Precision Nut Forming Machine manufacturer

Long Service Life High Precision Nut Forming Machine

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

More
China M20 Automatic High Precision 6 Station Nuts Making Machine High Precision Cold Forging Machine manufacturer

M20 Automatic High Precision 6 Station Nuts Making Machine High Precision 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 China Good Price Hot Sale Spring Washer Making Machine manufacturer

2026 China Good Price Hot Sale Spring Washer Making Machine

Rainbow full production of Spring washer making machine. we have all sizes equipment for 3mm, up to above 33mm spring washers.

We can provide a whole line to make spring washer. The spring wahser production line contains cutting machine, belt wire drawing machine, rolling up machine, coil collection machine.

 Spring washer machine it include three parts :

1 step,drawing the round wire to belt wire machine.

2 step,rolling up machine.

3 step, cutting machine.

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China 2026 Fully Automatic Cold Heading Machine Screw Making Machine manufacturer

2026 Fully Automatic Cold Heading Machine Screw Making Machine

High Speed Automatic 1 die 2 blow Cold Heading Machine Screw Making Machine

Multi stations Metal Forging Machinery

Cold Header Heading Machine

Screw Making Machines

Cold heading machine price

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China 2026 Rainbow High Speed Fully Automatic Screw Making Machine manufacturer

2026 Rainbow High Speed 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 Heat Treatment Furnace Industrial Continuous Mesh Belt Furnace manufacturer

Heat Treatment Furnace Industrial Continuous Mesh Belt 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 2026 Fully Automatic 4 Station Bolt Making Machine Cold Forging Machine manufacturer

2026 Fully Automatic 4 Station Bolt Making Machine Cold Forging Machine

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(Ningbo), one Thread rolling machine factory(Ningbo), one Heat treatment furnace factory(Suqian) and one Electro plating equipment factory(Wuxi).

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, With our reputation increasing and our team becoming more professional, we have experienced a significant growth in business during the recent years.

Nowadays, more and more reputed companies compete in a long-term cooperation with us.We abide by the principles of honesty, credibility, and mutual-benefit. Our motto is “ONCE BUSINESS, FOREVER FRIENDS”, we will do our best to serve clients at home and abroad. Due to our top-notch professional knowledge and rich trad experience, we have seen our market developing ability and actual business growth with an increasingly faster pace. We sincerely look forward to working with you. Let's build a great future together!

More
China Rainbow RBF-84S Fully Automatic Bolt Making Machine Cold Forging Machine manufacturer

Rainbow RBF-84S Fully Automatic Bolt Making Machine Cold Forging Machine

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(Ningbo), one Thread rolling machine factory(Ningbo), one Heat treatment furnace factory(Suqian) and one Electro plating equipment factory(Wuxi).

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, With our reputation increasing and our team becoming more professional, we have experienced a significant growth in business during the recent years.

Nowadays, more and more reputed companies compete in a long-term cooperation with us.We abide by the principles of honesty, credibility, and mutual-benefit. Our motto is “ONCE BUSINESS, FOREVER FRIENDS”, we will do our best to serve clients at home and abroad. Due to our top-notch professional knowledge and rich trad experience, we have seen our market developing ability and actual business growth with an increasingly faster pace. We sincerely look forward to working with you. Let's build a great future together!

More
China Socket Screw Forming Machine with Length 120mm manufacturer

Socket Screw Forming Machine with Length 120mm

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 4 Spindle Nut Tapping Machine Harbin Rainbow Technology manufacturer

4 Spindle Nut Tapping Machine Harbin Rainbow Technology

China Automatic Screw Cold Heading Machine Harbin Rainbow Technology manufacturer

Automatic Screw Cold Heading Machine Harbin Rainbow Technology

China Best Price Good Quality Wire Nail Making Machine manufacturer

Best Price Good Quality Wire Nail Making Machine

Nail making machine This machine is advanced in design, compact in structure, beautiful in appearance, easy to use, safe in operation, high speed and so on.

More
China Fully Automatic  Hex Bolt Cold Forging Machine China manufacturer

Fully Automatic Hex Bolt Cold Forging Machine China

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(Ningbo), one Thread rolling machine factory(Ningbo), one Heat treatment furnace factory(Suqian) and one Electro plating equipment factory(Wuxi).

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, With our reputation increasing and our team becoming more professional, we have experienced a significant growth in business during the recent years.

Nowadays, more and more reputed companies compete in a long-term cooperation with us.We abide by the principles of honesty, credibility, and mutual-benefit. Our motto is “ONCE BUSINESS, FOREVER FRIENDS”, we will do our best to serve clients at home and abroad. Due to our top-notch professional knowledge and rich trad experience, we have seen our market developing ability and actual business growth with an increasingly faster pace. We sincerely look forward to working with you. Let's build a great future together!

More
China One Die Two Blow  M8 Screw Machine Machine China manufacturer

One Die Two Blow M8 Screw Machine Machine China

China Multi  Station Cold Foging Bolt Making Machine CE manufacturer

Multi Station Cold Foging Bolt Making Machine CE

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