Zolemba mu Chitchaina

Chithunzi cha ASTMA53

GB-T14976-2012Chitoliro chosapanga dzimbiri chosapanga dzimbiri chosinthira madzimadzi

GB_T12459-2017

GB 3274-2017

GB 713-2014

Silinda zitsulo chitoliro mfundo, zipangizo ndi zofunika

GB_T12459-2017

HS kodi

DIN 2391-2-Chitchaina

DIN-2391-1-Chitchaina

Chithunzi cha ASTM A519

GBT-3696-2009

BS1387-1985钢管和管件标准

GB 50540-2009 石油天然气站内工艺管道工程施工规范 (含2012年版修改内容)

JIS-G3461-1988-锅炉及热交换用碳素钢钢管

GBT9711-2011

Chithunzi cha ASTM-A36

ASTM-A770特殊钢板

EN10297-1

Catalogue ya Sanon Pipe

GBT3639-2009

GBT17396-2009

API5L-第46版

API 5CT 套管和油套管规范