built-in-isolating joints的意思|示意
美 / /
英 / /
built-in-isolating关节
built-in-isolating joints的网络常见释义
要求 ... water supply; built-in-isolating joints; requirements and tests 简 介:燃气管路;给水;防腐蚀;流体设备元件;燃气供应;要求;规范(审批);输水管道;燃气技术;材料;管道;...