HAIYAN LONGSHENG HARDWARE CO.,LTD is located in Haiyan , Jiaxing, Zhejiang Province.

It’s near ZHAPU PORT AND SHANGHAI PORT and with Convenient transportation.

Our company was founded in 2002.our main products are threaded rod, stud bolt and U-BOLT. Products are according to “DIN”, “ISO”, “ANSI”, “BS” standards. our size range is M4-M64,1/8-2.the length is from 100mm-4000mm.