ISO DIS 21809-3-2007 石油和天然气工业-管道输送系统中埋藏或浸没管线的外涂层 — 第3部分:野外补口防腐层.pdf
简介:Petroleum and natural gas industries — External coatings for
buried and submerged pipelines used in pipeline transportation
systems —
Part 3:
Field joint coatings详询:400-039-8819上海益环仪器,万能试验机