Amadokhumenti

GBT 3087-2022

I-ASTM A335-2019

I-ASTMA53

SANS62-1:2013

I-JIS G3125-2015

I-GOST 633_1980

I-GB-T14976-2012Ipayipi lensimbi engenamthungo lokudlulisa uketshezi

GB_T12459-2017

I-GB 3274-2017

I-GB 713-2014

I-EN10025-1

BS_EN_10025_2_2019

I-BS EN 10025-3-2019

ASTM_ A450_A450M-2004a

I-ASTM A530_A530M-2012

I-ASTM A234_A234M-2018

GOST-380-2005-E2008-ENG

GOST_8732-78

Izindinganiso zamapayipi ensimbi yesilinda, izinto zokwakha kanye nezidingo

GB_T12459-2017

I-GOST8639-82

I-GOST 10704_1991

I-GOST 8732_1978

Ikhodi ye-HS