Chaw Nres Tsheb Sab Nraum Zoov Bollard Hlau Hlau Qhov Tseem Ceeb Xauv Tau Tshem Tawm Hauv Av Bollard Nrog Lub Tes Tsho Drilled Core

Kev Piav Qhia Luv:

Hom khoom: tshem tau xauv bollard

Khoom siv: carbon hlau los yog customized

Qhov siab: kho raws li qhov xav tau

Xim: daj, Lwm yam xim

Lo Lus Tseem Ceeb: Kev Nyab Xeeb Tshem Tawm Bollard Post