<p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="ZH-CN" style="FONT-FAMILY: SimSun; mso-fareast-language: ZH-CN; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman';"><font size="3">各位大大,请问冲压镀锡马口铁如何润滑,用润滑加上容易产生白蒙蒙,有何解决办法,另马口铁用何种方法测试镀层厚度,多谢大家帮忙!</font></span></p> |