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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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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 ...

hot forging furnace induction heating machine ipsen furnace mesh belt

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(...

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...

China factory price and Advanced Automatic Screw Maker Thread Rolling Machine

Product Descriptionview more >>Frequently bought togetherHigh Speed Thread Rolling Machine Factory Price Thread Roller Hot Sale Thread Machine$4,800.0...

What's washer?

Washers: flat circular shape of a class of fasteners. Placed on the bolt, screw or nut support surface and connection between the surface of the parts...

Max diameter one key molding nut drilling machine 2 spindle nut tapping machine

Nut tapping machine is a kind of mechanical processing equipment that processes internal threads, screws or teeth in the inner side of the holes of th...

RBF 64S cold heading machine Latest production bolt former machine for anchor

Harbin Rainbow Technology Co.,Ltd is one of the biggest fastener equipment dealer and manufacturer in China. We have invested one Cold former factory(...

International Fastener Exhibition in New Delhi, India

It is a professional fastener exhibition in Southeast Asia FASTNER FAIR INDIA is a professional fastener exhibition in Southeast Asia, and also mainta...

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...

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China Bearing type high speed nut and spare part forging machine manufacturer

Bearing type high speed nut and spare part forging machine

high capacity,high precision,full automatic,cold forging machine, nut making machine More
China High precision nut and bolt making machine on sale manufacturer

High precision nut and bolt making machine on sale

high capacity,high precision,full automatic,cold forging machine, nut making machine More
China Extra thick nut part former factory made manufacturer

Extra thick nut part former factory made

high capacity,high precision,full automatic,cold forging machine, nut making machine More
China Hot sale bolt and nuts manufacturing machine multi-Station power hammer nut making machine manufacturer

Hot sale bolt and nuts manufacturing machine multi-Station power hammer nut making machine

Six die seven die extra long bearing type high speed nut and spare part forging machine More
China Wholesale Design Screw Barrel Profiles Electrostatic Powder Coating Line Zinc Plating Machine manufacturer

Wholesale Design Screw Barrel Profiles Electrostatic Powder Coating Line Zinc Plating Machine

Barrel plating automatic production line can be adapted to a variety of small parts, standard parts and various types of plating needs substantial inc... More
China Multi Functions Automatic Magnet Drilling Machine Advanced Nut and Screw Tapping Machine manufacturer

Multi Functions Automatic Magnet Drilling Machine Advanced Nut and Screw Tapping Machine

tails Images More
China Screw and Bolt Fasteners Barrel Electroplating Plant Hot Dip Galvanizing Zinc Plating Machine manufacturer

Screw and Bolt Fasteners Barrel Electroplating Plant Hot Dip Galvanizing Zinc Plating Machine

Free design,Provide quotation list, process chart, lay out drawing, video to see more details
We have specialized in surface treatment equipment for more than 20 years
If you need, please contact me!
Whatsapp---+86 15056856057 More
China Professional Design Screw Barrel Profiles Electrostatic Powder Coating Line Zinc Plating Machine manufacturer

Professional Design Screw Barrel Profiles Electrostatic Powder Coating Line Zinc Plating Machine

Free design,Provide quotation list, process chart, lay out drawing, video to see more details
We have specialized in surface treatment equipment for more than 20 years
If you need, please contact me!
Whatsapp---+86 15056856057 More
China China Manufacturer PP Pleating Tank Electroplating Barrel Plant Zinc Plating Machine manufacturer

China Manufacturer PP Pleating Tank Electroplating Barrel Plant Zinc Plating Machine

Free design,Provide quotation list, process chart, lay out drawing, video to see more details
We have specialized in surface treatment equipment for more than 20 years
If you need, please contact me!
Whatsapp---+86 15056856057 More
China multi station bolt and nut making machine cold heading machine with in stock manufacturer

multi station bolt and nut making machine cold heading machine with in stock

China manufacturer nuts and bolts cold forging machine power hammer forging hex bolt making machine More
China multi station bolt and nut making machine cold heading machine with free tooling manufacturer

multi station bolt and nut making machine cold heading machine with free tooling

China manufacturer nuts and bolts cold forging machine power hammer forging hex bolt making machine More
China Good price bolt forming machine High precision cold forging machine with Mechanical gripper manufacturer

Good price bolt forming machine High precision cold forging machine with Mechanical gripper

China manufacturer nuts and bolts cold forging machine power hammer forging hex bolt making machine More
China Rainbow Automatic Screw Thread Rolling Machine manufacturer

Rainbow Automatic Screw Thread Rolling Machine

The thread rolling machine adopts two thread profile thread rolling plate staggered 1/2 screw distance design, One plate is fixed, movable plate is on... More
China Rainbow Large Spring Washer Cutting Machine manufacturer

Rainbow Large Spring Washer Cutting Machine

Rainbow full production of Spring washer making machine. we have all sizes equipment for 3mm, up to above 33mm spring washers. More
China Rainbow Hot Sale Spring Washer Cutting Machine manufacturer

Rainbow Hot Sale Spring Washer Cutting Machine

Rainbow full production of Spring washer making machine. we have all sizes equipment for 3mm, up to above 33mm spring washers. More
China Rainbow Spring Washer Automatic Cutting Machine manufacturer

Rainbow Spring Washer Automatic Cutting Machine

Rainbow full production of Spring washer making machine. we have all sizes equipment for 3mm, up to above 33mm spring washers. More
China Rainbow Spring Washer Production Line Automatic Cutting Machine manufacturer

Rainbow Spring Washer Production Line Automatic Cutting Machine

Rainbow full production of Spring washer making machine. we have all sizes equipment for 3mm, up to above 33mm spring washers. More
China Rainbow Spring Washer High Productivity Cutting Machine manufacturer

Rainbow Spring Washer High Productivity Cutting Machine

Rainbow full production of Spring washer making machine. we have all sizes equipment for 3mm, up to above 33mm spring washers. More
China Rainbow Spring Washer Cutting Machine High Productivity Spring Washer Production Line manufacturer

Rainbow Spring Washer Cutting Machine High Productivity 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. More
China Rainbow Spring Washer High Speed Cutting Machine manufacturer

Rainbow Spring Washer High Speed Cutting Machine

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

Rainbow Spring Washer Cutting Machine

Rainbow full production of Spring washer making machine. we have all sizes equipment for 3mm, up to above 33mm spring washers. More
China Chinese famous brand thread making machine manufacturer

Chinese famous brand thread making machine

The thread rolling machine adopts two thread profile thread rolling plate staggered 1/2 screw distance design, One plate is fixed, movable plate is on... More
China Rainbow Spring Washer Machine Large Size Coil Machine manufacturer

Rainbow Spring Washer Machine Large Size Coil Machine

Rainbow full production of Spring washer making machine. we have all sizes equipment for 3mm, up to above 33mm spring washers. More
China Chinese famous brand screw manufacturing machine manufacturer

Chinese famous brand screw manufacturing machine

Harbin Rainbow Technology Co., Ltd. is a leading fastener equipments supplier in China. The main business is manufacturing cold forging machine, such as Bolt Maker, Nut Maker, Heading Machine, Thread Rolling Machine, Wire Drawing Machine and Mesh Belt Furnace,Zinc Plating Machine, etc.



We have established reputation in countries such as India, US, Europe and Southeast Asia where we have core customer bases. Meanwhile, we are well respected by the domestic factories and the customers in the mechanical and electrical business.



We have the confidence, backed by our professional knowledge and experience in the mechanical and electrical business, to develop the foreign markets for our home enterprises and to open up the Chinese markets for the companies abroad.



Nowadays, more and more reputed companies compete in a long-term cooperation with us. That‘s why we can provide our customers with the best quality products, the bes More