Company Introduction

Ningbo Chenglong Special Co.,Ltd. Was established in 1992 and specializes in selling products from famous domestic special steel and fastener companies.We have more than 100 sets production equipment, mainly are: various kinds of heat treatment equipment, hot forge bolts product line, multiple-cold forge equipment, entwist and threading machine.More than 20 sets perfect set of testing machine , mainly are: 100 tons & 60tons tensile machine, charpy impact tester, material analysis instrument, crack detected machine, hardness tester, torque tester and so on. Our products have been passed ISO :9001~2008

Product Catagories

THREADED BARS,STUDBOLTS,HEX NUTS ALLOY STEEL BAR,PEELED BRIGHT STEEL BAR,HARD-CHROME PLATED BAR