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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...

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

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...

Category

China Automatic Nut Making Machine for M30 High Efficiency Spare Parts Making Machine manufacturer

Automatic Nut Making Machine for M30 High Efficiency Spare Parts Making 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 Screw Thread Rolling Machine with Manufacture Price manufacturer

High Speed Screw Thread Rolling Machine with Manufacture Price

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 High Precision Thread Rolling Die Screw Thread Rolling Machine Threading Machine manufacturer

High Precision Thread Rolling Die Screw Thread Rolling Machine Threading 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 High Speed Spring Washer Making Machine Spring Washer Production Line manufacturer

High Speed Spring Washer Making Machine Spring Washer Production Line

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 Automatic 1 Die 2 Header Screw Cold Heading Machine High Speed Screw Making Machine manufacturer

Automatic 1 Die 2 Header Screw Cold Heading Machine High Speed 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 Best Quality 4 Spindle Nut Tapping Machine manufacturer

Best Quality 4 Spindle Nut Tapping Machine

China Automatic Screw Making Machine Screw Cold Heading Machine manufacturer

Automatic Screw Making Machine Screw Cold Heading Machine

China High Precision Automatic Thread Rolling Machine manufacturer

High Precision Automatic Thread Rolling Machine

China High Speed Fully Automatic Nut Crimping Machine With Rivet manufacturer

High Speed Fully Automatic Nut Crimping Machine With Rivet

China Best Quality Nails Manufacturing Machinery Nail Making Machine manufacturer

Best Quality Nails Manufacturing Machinery 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.

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China High Speed Fully Automatic M8 M10 Hex Bolt Cold Forging Machine manufacturer

High Speed Fully Automatic M8 M10 Hex Bolt 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!

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China 300kg Capacity Continuous Mesh Belt Furnace manufacturer

300kg Capacity Continuous Mesh Belt Furnace

High Quality Advanced Mesh Belt Furnace

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China Automatic Nut Crimping Machine manufacturer

Automatic Nut Crimping Machine

China Nail Making Machine  Hight Speed manufacturer

Nail Making Machine Hight Speed

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.

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China Hex Bolt Cold Forging Machine High Precious China Brand manufacturer

Hex Bolt Cold Forging Machine High Precious China Brand

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!

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China Continuous Mesh Belt Furnace For Fastener Products Harbin Rainbow manufacturer

Continuous Mesh Belt Furnace For Fastener Products Harbin Rainbow

China High Speed Screw Cold Heading Machine Harbin Rainbow manufacturer

High Speed Screw Cold Heading Machine Harbin Rainbow

China Fully Automatic Cold Foging Bolt Making Machine Harbin Rainbow manufacturer

Fully Automatic Cold Foging Bolt Making Machine Harbin Rainbow

China Automatic Galvanizing Line For Screws Nuts manufacturer

Automatic Galvanizing Line For Screws Nuts

China Heat Treatment Mesh Belt Furnace 150kg-1000kg  Harbin Rainbow manufacturer

Heat Treatment Mesh Belt Furnace 150kg-1000kg Harbin Rainbow

China Automatic Optical Screw Nut Washer Sorting  machine Harbin Rainbow manufacturer

Automatic Optical Screw Nut Washer Sorting machine Harbin Rainbow

China High speed nut threading machine with Auto feeding system manufacturer

High speed nut threading machine with Auto feeding system

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.

More
China 2026 hot sale nut tapping machine for SS nuts manufacturer

2026 hot sale nut tapping machine for SS nuts

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.

More
China Made in Chiha high temperature heat treatment line with auto control system manufacturer

Made in Chiha high temperature heat treatment line with auto control system

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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