Dab tsi yog cov kev faib tawm ntawm cov kab nrig?

Hauv lub neej, peb yuav tau sib cuag nrog ntau daim txhuam cev ntim, yog li peb tsis siv daim txhuam cev, cov khoom siv hluav taws xob tau siv rau hauv cov khoom lag luam hauv tsev, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob thiab lwm cov khoom ntim tau muag {}}

Ntim cov khoom lag luam yog hloov tau, lub luag haujlwm sib txawv, nplua nuj} Nyob rau hauv tib lub sijhawm, thiab tuaj yeem siv cov khoom siv hluav taws xob kom zoo nkauj, thiab tuaj yeem siv tau cov tshuaj tiv thaiv kom zoo nkauj Kuj . Tab sis koj puas paub raws nraim li cas sponges tau muab cais?

Dab tsi yog qhov kev faib tawm ntawm cov kab xev sib xws:
1. General Daim Txhuam Hniav (los ntawm 15 tus txheeb ze ua kom ceev rau 50 tus nqi siab tshaj plaws)
2. nplaim ci retardant daim txhuam cev (dawb, dub grey, tsaus grey, xiav xiav thiab specifications xiav thiab specifications)
{{03. Harden Doure Daim Txhuam (nyuaj, nyuaj, thiab ntau lub zog compressive)
4. High-Densority Daim Txhuam Npe (28D, 30D, 33D, 40D, lwm yam})