WELCOME DEAR FRIEND

Tianjin longlong metal products factory (hereinafter referred to as longlong) was founded in 1991, since its establishment, Longlong has been engaged in manufacturing and R&D for various of cold bending steel profiles, flat single axis tracking bracket system，photovoltaic bracket, greenhouse steel structure and parts, as well as the roll forming machines production for products mentioned above; All the products have features of high precision, superior high standard,high performance due to dedicated professional experience.