1, Ndai general epoxy resin, acid n lawm ai mortar, acid n lawm ai cement, paving paste hpe lahta na galaw shapraw ai wa a arung arai ni hpe gawgap na matu matsun ni hte maren lang mai ai;
2, concrete a ntsa hpe jasan jaseng na matu oxalic acid hte rau, acid-base n-gun n-gun hpe shayawm kau ai;
3, Industrial porcelain acid hpe ninghkap lu ai lung seng ni, 8--10mm daram galu ai lapran, n-gun n rawng ai hte lung seng n-gun lapran na n-gun n-gun hpe pat shingdang na matu Sianpin hpaji jaw ai;
4, Oxalic acid n-gun n-gun n-gun hpe garan kachyan ngut ai hpang, grau ngang kang ai n-gun n-gun hpe karum ya lu ai. hpe karum ya lu ai.
