内径切槽加工 SIGE 看球APP

p1Src=//y1.yzimgs.com/uploads/192794/2022620-74756383.jpg?watermark/2/text/5bm_5Y2a5py65qKw5bel5YW377yI5aSn6L-e77yJ5pyJ6ZmQ5YWs5Y-4ICA=/font/5a6L5L2T/fontsize/300/fill/I0E3QTlBOA==/gravity/SouthEast"

aa