Welding joints must be certified before implementation of the welding process, thereby, the improvement of the welding process on barrel of pressure vessel is proved.

实施筒体的焊接工艺前，必须验证焊接接头的使用性能，从而证明压力容器筒体焊接工艺的重要性。

youdao

Your certified copy of fax dispatched to the account within forty-eight (48) hours after shipment advising name of vessel, quantity, weight, value and date of shipment.

小时内发送的通知船名、数量、重量、金额和启运日期的通知复印件一份。

youdao

Your certified copy of fax dispatched to the account within forty-eight (48) hours after shipment advising name of vessel, quantity, weight, value and date of shipment.

小时内发送的通知船名、数量、重量、金额和启运日期的通知复印件一份。

youdao