Nanxun Wanrong chain factory established in1997 and it is the one of the earliest manufacturers in China who produces silent chains Our products brand“WANRONG”&“SLNA”.lst heat treatment is advanced and material is selected alloy steel. Products compietely conform to the international standard-ISO9002 andChain standard-GB/T14212-93.Our main products are motorcycle chains,bush chains,silent chains.standard roller chains A&B series,leaf chains,and special chains,There are more than 30 types and 100 specificatitons ,Its products have been sold to over 20 provinces in China and the Europe, American ,South-East Asia,Africa, and the Mid-East Area.