NARROWSERIESWR， WH，WHX， WHX，ANDWSX
WR chains have only thru-hardened rivets
WH chains have all parts thru-hardened
WHX chains have thru-hardened parts and induction hardened rivets
WSX chains have all stainless steel construction. Sidebars are 300 series and pins and barrels are precipitation hardened stainless steel
Riveted construction is standard. Cotteredconstructioncanbefurnishedonamade-to-orderbasis.