Polycarboxylate Dej Ua Rau Cov Ntsuas Hluav Taws Xob Muaj Ntau Yam
Feb 24, 2019
Nws yog qhov tsim nyog rau prefabricated thiab cam-hauv-chaw ua vaj tse, pob zeb ua kom muaj zog thiab muaj koob meej rau kev tsheb ciav hlau qhov chaw ceev, cov neeg caij nplooj siab kab, kev lag luam thiab pej xeem cov tsev, txoj kev, txuas hniav, chaw nres nkoj, tshav dav hlau thiab lwm yam dej num.
Nws yog qhov tshwj xeeb tshaj yog rau cov phiaj xwm nrog kev tsim kho lub sijhawm ntev thiab kev xav tau siab rau cov pob zeb qis, xws li kev siv hluav taws xob nuclear.
