A.10mm B.15mm C.8mm D.20mm
A.15mm B.20mm C.25mm D.30mm
A.皺紋鋼管護(hù)套層絞式光纜 B.層絞LAP護(hù)套光纜 C.非金屬層絞型光纜 D.鋼-塑綜合護(hù)套光纜(PSP)