01 chaw tsim tshuaj paus ncaj qha muab 40 mech cenosphere ntawm tus nqi lag luam wholesale
2024-01-26 08:33:35 dr hab Cenospheres kuj hu ua microspheres, lawv yog inert, hollow spheres thiab lub teeb yuag fillers. Thiab lawv muaj tsawg ntom ntom, tsis muaj zog, corrosisous-resisting, thermal ruaj khov, siab ib nrab lub zog, zoo insulating, suab sib cais, cov dej tsis muaj ...