Vitreous and porcelain enamels — Glass-lined apparatus for process plants — Part 4: Quality requirements for glass-lined flanged steel pipes and flanged steel fittings
玻璃和瓷搪瓷 - 玻璃衬里的工艺设备 - 第4部分:玻璃衬里法兰钢管和法兰钢接头的质量要求
发布日期:
2015-10-26
ISO 28721-4:2015规定了用于工艺装置的搪玻璃法兰钢管和法兰钢配件的质量要求。
ISO 28721-4:2015 specifies the quality requirements for glass-lined flanged steel pipes and flanged steel fittings used for process plants.