Regarding RO Duplex piping fabrication for project CHI0003 we did not yet received your pressure testing and pickling and passivation method statement for fabricated Duplex piping.

• 关于CHI0003项目中RO双相钢管路的装配，我们至今未收到有关已装配双向管道的压力试验及酸洗、钝化方式呈述。