Zazzagewa

ASTM A193_A193M-2017

ASTM A194_A194M-2018

ASTM A325-2014

DIN912-83

DIN931-1-87

DIN933-87

ISO 898-1-2013

ISO 898-2-2012

Sabbin kasida

Farashin 6914-89

Matakin bita na EU game da hana zubar da sabbin masu fitar da karafa zuwa China