Longtime Holding Group Co., Ltd.

Longtime Holding Group is located in the famous "hardware" Yongkang, the chairman of Mr. Huang Yu founded in 1999, ten years the company continued to strive for progress, innovation and beyond, and now has become has 12 branches, eight Independent industry (doors, lock industry, Titanium, coating, plastic cover plate, aluminum, real estate, international trade) of large enterprise groups.
Security door industry is the company's leading industries, specializes in producing high quality security doors, steel doors, process imitation copper door, fire safety doors, wood (wood) interior doors, and other products.the group covers 100,000 square meters and above 1000 employees . It has been rapidly developed into a modern enterprise which has the ability of producing 4000 sets of doors per day.
Among the many products in the door, longtime's door as its stylish design, excellent craft, and faithful to the letter of the service by the majority of users love, and now not only sold well in domestic but also exported to more than forty countries in the world. such as Poland ,Russia ,Mexico,Turkey and so on
Therefore, the company won the Quality of the "Golden Pledge" units, YIHE trademark was awarded as "China Famous Brand",the security gate was named "Zhejiang Famous Brand", "Zhejiang famous hardware", has got the "China Environmental Labeling Product Certification certificate. "
Today, Longtime company will continue to strive for excellence, to provide customers perfect products, and new and old customers to establish more extensive and deeper cooperation, to jointly create a bright future!

Business Type




Establish Year



ISO 9001:2000

Major markets

South America; Southeast Asia; Mid East; Western Europe;

OEM/ODM service


Number of employees

1,000 - 2,000

Legal representative

for premium members only

Business addresss

Beside 330 National Highway, Huangyuan Village, Huajie Town, Yongkang City, Zhejiang Province. China

steel security door(LT-081)
Product Name

steel security door(LT-081)

Product Name

metal room door(LT-602)

Product Name

Metal door (LT-015)



Contact person

Ms. Tina Li




Beside 330 National Highway, Huangyuan Village, Huajie Town, Yongkang City, Zhejiang Province. China





Postal code