GY–sab nraum zoov fiber optic cable
GJ - cable kho qhov muag sab hauv tsev
MG - Thee mine optical cable
II. Hom khoom siv txhawb zog
(tsis muaj qauv) - cov khoom siv hlau txhawb nqa
F - Cov khoom siv txhawb zog uas tsis yog hlau
III. Cov yam ntxwv ntawm cov qauv
D-qauv daim kab xev fiber
(Tsis muaj teeb liab) - Cov qauv txheej xoob sib ntswg
Cov Qauv Raj X-Center
G-cov qauv pob txha
T-puv
Z-fireproof qauv
Tus qauv txhawb nqa tus kheej hom C8–8
Ⅳ. Kev Txhaum
Y-polyethylene npog
W-steel-polyethylene bonding sheath ntawm trailed steel hlau
S-steel-polyethylene bonding sheath
A - Aluminium thiab polyethylene bonding sheath
V-PVC txheej
V. Lub hau sab nraud
53 daim kab xev hlau corrugated qhwv longitudinal hauv lub tes tsho polyethylene armored
Lub tes tsho polyethylene armored nrog daim kab xev hlau qhwv rau hauv 23
Cov hlau hlau zoo qhwv 33 lub npog polyethylene
Cov hlau hlau tuab 43 nti qhwv, npog polyethylene armored.
333-Ob txheej txheej hlau zoo hlau armored polyethylene txheej
Lub sijhawm tshaj tawm: Cuaj hlis-17-2022
