推荐资源 Mk8齿轮挤出机 0 0 固定式面板PF31和PF32-公制 0 1 DIN EN ISO 4762 (DIN 912) 螺丝 0 0 螺钉 DIN 967(带压垫圈的半球螺钉 DIN 967) 0 2 Rexnord-Flex-Block Sleeve Bearing Pillow Block 3200P-3210PT1 0 0