1. Light in weight and non-rusting. 2. Smooth in running, can work a long time in dreadful conditions. 3. High efficiency, low noise. 4. Good-looking in appearance, durable in service life, and small in volume. Deta...
The gypsum slurry includes water, a hydraulic component including at least 50% calcium sulfate hemihydrate based on the weight of the hydraulic component and a specific two-repeating unit polycarboxylate dispersant. The polycarboxylate dispersant is a co-polymer that includes a first and a second ...
000 Daltons. Surprisingly, it has been found that the lower molecular weight dispersants cause less retardation of set time than dispersants having a molecular weight greater than 60,000 Daltons. Generally longer side chain length, which results in an increase in overall molecular weight, provides b...
A1 upgrade is the second generation of linkage compensation chair frame, both comfort and weight have been further improved. the whole chair adopts die-casting aluminum back, aviation foaming environment-friendly glue injection base and die-casting aluminum two-color rotating arm. ninety ° the ...