rs485 3x18aawg铠装双绞屏蔽电缆astp-120-1*2*24awg 22awg 20awg 18awg双绞屏蔽电缆stp-120-1*2*24awg 22awg 20awg 18awg;rs4853x2x1.5通讯电缆引进国外技术导体为铜芯镀锡导体.导体双绞.铝箔缠绕.屏蔽层.阻燃灰色外护套组成.特性阻抗120欧姆. 规格有2*212awg2*216awg 2*217awg 2*218awg 2*220awg 2*221awg 2*222awg 2*224awg规格有4*2*12awg 4*2*16awg 4*2*17awg 4*2*18awg 4*2*200awg 4*2*22awg4*2*24awg 4*2*21awg
RS485 3X18AAWG