Internal and or external protective coatings for steel tubes - specification for hot dip galvanized coatings applied in automatic plants 钢管内外保护覆层.用于自动化车间的热浸镀锌规范
2.
Internal and or external protective coatings for steel tubes . specification for hot dip galvanized coatings applied in automatic plants 钢管内部和或外部防护涂层.自动装置热浸镀锌涂层规范
3.
Internal and or external protective coatings for steel tubes - specification for hot dip galvanized coatings applied in automatic plants ; german version en 10240 : 1997 钢管的内部和或外部防护涂层.自动装置的热浸镀锌涂