高清一区二区三区免费,亚洲在线一区,福利视频二区,一区二区在线视频,中文字幕不卡一区二区三区,亚洲区中文字幕,亚洲123区

Products
About Us
Nanyang Jinguan industrial group (i.e. Nanyang Jinguan technology reform and) is a well-known domestic zinc oxide high voltage resistor and zinc oxide arrester production base is a key national high-tech enterprises and Henan Province high-tech enterprises. Our company since the late 70s of last century took the lead in the country began to research, development and production of zinc oxide high voltage resistor and metal oxide arrester.
news
contact us
Address:Nanyang West Zhongzhou City, Henan Province
Tel:+86-377-62891299
Fax:+86-377-60281979/60281989
E-mail:nyjgsy#163.com