General:

Tianjin Grewin Group is concentrating on transformers for 25 Years and complianted by ISO9001: 2015, CB, IEC CB, CE etc. We're always pay great attention to its business philosophy "Quality and Honesty First". Grewin is specialized in the design and manufacture of wound components such as transformer, current sensors, chokes etc. Windely used in communications, electronics, meters, industrial control, medical equipments and other fields. We are also a provider of power meters and tape and winding machines. 85% of its products exported to America, Europe, and Asia etc. We sincerely invite you to join us to create a bright future.

ShenZhen Bailingjia Technology Co., Ltd, a Hi-Tech Enterprise dedicating to the wireless communication domain, engages in R&D, manufacture and sales of wireless products.

Shenzhen Ranglink Technology Co., Ltd. Was founded in 2018, we have 50+ employees and more than 10 production lines. More than 100 companies from 30+ countries have established businessship with us.

Original manufcturer of VoIP gateway and SMS gateway in Shenzhen, China.

YX International Information Co., Ltd is a manufacturer of GoIP GATEWAY, VoIP Products, GSM Modem and IP Phone with well-equipped testing equipment and strong technical force. Which is found in 2007, with almost 5 years export experience.

YX International Information Co., Ltd is a Professional VoIP Products' manufacturer of GoIP GATEWAY(GSM/CDMA/WCDMA/4G), SIM BANK,

AT International Group Co., Limited is a leading factory in China, specializing in RS232, PCI, USB, PCMCIA & Express GSM/GPRS/CDMA industrial modems, 3G HSDPA/HSUPA/EDGE modems and modem cards, PCI&RJ45 USB GSM/GPRS/CDMA 8/16/32/64 port modem pools, wireless communication parts and various cables for digital electronic products (GSM/CDMA Alarm systems). Our devices are in compliance with RS-232 and USB interface standards and have direct connectivity with RTU PLC. Intelligent instruments and other types of industrial devices are connected to next-bit machines, using a transparent means of communication, so non-IP system equipment through the serial ports is easy to access CDMA /GPRS network and Internet.

Established in the year of 2006, Shenzhen Bailing Technology Co., Ltd is one of the leading manufacturers dedicated in telecommunication and security industry. We are specialized in manufacturing GSM wireless products like modem, modem pool, alarm system data monitors and long-range supervision systems for families, electric power, mobile base stations, transportation, petrolum finances, civil and police stations etc. What's more, we highly appreciate OEM /ODM business. We have a professional R&D team to help you with your multiple products requirement. Can according to your specific needs to design the best solution project for your market expansion Bailing adheres to the principle of Good quality, best service, customer satisfaction as our persuit.

Shenzhen Bailingjia Technology Co., Ltd, a Hi-Tech Enterprise dedicating to the wireless communication domain, engages in R&D, manufacture and sales of wireless products.

About Jenet

We are the shenzhen violet cube Technology co, Ltd. We specialize in 3G router, modem pool and HSDPA. In this line, we had rich experence for several years.

A&T Industry is a contract manufacture and exporter of quality sand castings, Investment castings, lost foam castings, hot forgings, cold forgings, stampings, Machined parts, injectionmolded plastics parts, etc.

BOLEYSI Hong Kong INTERNATIONAL TRADING LIMITED is a China-foreign joint venture with solid strength. It locates in the biggest international trading port of the world---Hongkong and Shenzhen ( which is an austral city having very convenient transports extending in all directions. )