We Zhejiang Baiyou Fasteners CO.,LTD. are the biggest manufacturer involving steel fasteners in CHINA with the total area of 25000sqm and over 900 sets of machine. The high quality and best service privilege us the most competitive factory in CHINA. Our main products include HEX NUT, WING NUT, DOMED NUT, HEX BOLT, HEX SOCKET BOLT, TAPPING SCREW, SPRING WASHER, THREADED RODS and so on. The products carried by DIN,ANSI/AMSE,JIS,ISO. Our annual production ability can up to 100000 ton本公司主营：碳钢紧固件;内六角;外六角;螺母;牙条;