Regarding some technical issues <br><br>that you have confirmed with me before, in order to enable you to better understand some basic operations and oil replacement matters of the HF385Y drilling rig, we specially made an operation process for your reference. See attachments. <br><br>It includes some basic operations of HF385Y, and <br><br><br>we look forward to reaching a long-term cooperative relationship with you. <br><br>Has the local situation been particularly good recently?
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