Thread Rod & Stud Bolt

A193-B7/B7M, A320-L7/L7M

ASTM A193 B7—ASTM A194 2H

ASTM A193 B7M—ASTM A194 2HM

ASTM A320 L7—ASTM A194 GR.7

ASTM A320 L7M—ASTM A194 GR7M

Alloy steel, AISI 4140/4142 quenched and tempered

Ruihong Group.
Industrial zone,Wuxing,Huzhou,China
(86) 572-2373192
(86) 18006626989

ruihongco@yeah.net