Siemens Simatic S7 300 PLC 6ES7 Module 6ES7 321-1BL00-0AA0/6ES7321-1BL00-0AA0

Product Description

Siemens Simatic S7 PLC 6ES7 Module  6ES7 321-1BL00-0AA0

1. Professional in supplying.

2. Quality assurance and competitive price.

3. Perfect  after-sale service, 1 year warranty for all products.

4. Bigger Stock - Faster Delivery !

Contact with us: Kary

Skype: OCT Automation-Kary

Wechat/Whatsapp: 13642976128

E-mail: sales04@

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We have different modules of this type. 

Most products are in our stock!

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Packaging & Shipping

We support EMS,DHL,Fedex,TNT, door to door delivery.

If you have some special requirements, please tell us and we can try our best to arrange the shipment.

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Our Services

We supply the goods of Siemens,  Allen-Bradley,  Omron, Schneider, Ge fanuc,  Delta PLC, HMI, Inverter, Mitsubishi and  Keyence Sensors. 

Please read the main products are as below:

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Company Information

OCT Automation CO., LTD is an international trading company in China, specialized in selling industry automation products, such as PLC,HMI,AC Inverter, DC Inverter & Spare Parts. Major brands are Siemens, Allen-Bradley, Mitsubish, Omron, Schneider. Delta. Keyence, Yaskawa. ABB Drives, Hitech, Proface, Sick Sensors etc.

We guarantee all products are 100% original factory package with one year warranty. We are dedicated in providing the best service with high product quality, fast delivery time and sufficient in stock goods. 

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Contact us

If you have any interest in our products, please do not hesitate to contact us

We'll give the best prices to you!

An online store is available on our website 

Tel:0086-13642976128

skypeID:OCT Automation-Kary

Your trust is our greatest motivation to keep us moving.