R107-AM13S/6M-M1-522.8减速XLD4-87-机R107-MA132S/M-M1-52.

进口氟胶O圈内径522/522.8/527.8/532.8/542.8*8.6 FFKM O型圈

522.8A150WPO交C换机759电源PF谐V振POE网络供电电源通信E明伟电

【甬成】丁晴O型圈NBR内径512.8/514.3/517.8/522/522.8*8.6mm