Siemens SIMATIC S7-300 Digital Input Module SM 321 – 6ES7321-1CH00-0AA0

　　Guangzhou Qiming Automation Technology Co., Ltd. Main categories: tension control, controller, register, converter, communication module, expansion module, power supply unit, power module, control module, serial button, control motherboard, electronic module, system module, logic module, input unit, parameter module, output module, protection module, excitation system card, signal conditioner, processor module, Ethernet module, processor unit, circuit board module, signal acquisition module, DCS system module, BENTLY, human-machine interface touch screen, etc. ...
Q: Does your company provide samples? Is it free or extra charge?

　　A: It depends on the goods you need and the quantity you order.

　　Q: What are your payment terms?

　　A: 100% T/T before shipment. If the quantity is large, we can negotiate.

　　⇒ Company Services:

　　1. Fast delivery (1-7 days for stock products)

　　2. Rich experience (more than 10 years of sales experience)

　　3. Large inventory (various brands and overseas warehouses)

　　4. Quality insurance (1 year warranty for clear product condition)

　　⇒ Shipping

　　1. For stock items, we will ship to you within 7 days after receiving payment

　　2. We can ship to all parts of the world by DHL, UPS, FEDEX, TNT and EMS.

　　3. If you have a shipping agent, please tell us before shipment.

　　4. We will pack the parts in a sturdy box, if you have any special needs, please inform us.

　　5. We usually ship before 4:30 pm, and we will send you the tracking number after shipping. It takes 7~15 days to receive the package.

　　6. Please email us when you receive the package.

　　7. When asking about shipping costs, please include all information, otherwise it will slow down the process.