Haiyan Rongji Standard Parts Co., Ltd (Its previous name is Haiyan Rong Sheng Standard Parts Plant) was founded in 1993, which located at the northern bridgehead of the Hangzhou Bay Cross-sea Bridge. And it occupies area of more than 18000 square meters, 6000 square meters' standard workshop. Our main products has ANSI wood screw, DIN571 wood screw, carriage bolt, hexagonal bolt, hexagonal bolt with flange gasket, clasp nail, lifting eyebolts, double end bolt, U and V Type bolt, furniture bolt and cement nail, Surface treatment has zinc plate, hot dipped galvanized zinc, polishing, harden, black pleated and Dacromet, etc.


The annual producing ability of Rongji is 8000 tons, and its products are sold to America, Europe, South Korea, Ecuador, Chile and Middle East Area. The products are greatly welcome by all the customers. we have acquired ISO9001:2000 quality certification in 2006.


Rongji is consistently purchasing advanced technology and learning excellent management experience or service concept. And they honors enterprise culture and models "Solidarity cooperation, cautious and conscientious, sufficient and innovative" as their spirit. Our quality policy is to create famous brand, to optimize service, to improve consistently and to satisfy customers. Every Rongji people will be glad if their screw is deeply into users' hearts.