63/32LLU/5K 日本NTN丝杆支撑轴承 BK1612

63/32LLU/5K价格交期,63/32LLU/5K 日本NTN丝杆支撑轴承 NU2308G1C3

63/32LLU/5K重量,63/32LLU/5K尺寸