Khuphela

I-ASTM A193_A193M-2017

I-ASTM A194_A194M-2018

I-ASTM A325-2014

I-DIN912-83

I-DIN931-1-87

I-DIN933-87

ISO 898-1-2013

ISO 898-2-2012

Incwadana yamva nje

I-DIN6914-89

Uphononongo lwesigqibo se-EU malunga nokulahlwa kwabaThumeli-mpahla ngaphandle kweZiqholo zentsimbi ukuya eTshayina