1.rubber auxiliary thlah hmasa ber .
[1839~1904] He hunlai hian rubber auxiliary products te hi inorganic vulcanization promoters. te hian an entir a, rubber industry hian inorganic vulcanization promoter te hunlai ah a lut a, mahse promotion efficiency hniam leh vulcanization performance tha lo tak tak te ang chi harsatna a nei bawk.
Kum 1839 khan vulcanization hmuhchhuah a ni a.
Kum 1844 khan inorganic sulfide accelerator basic lead carbonate hmuhchhuah a ni.
Kum 1846 khan foaming agents hmuhchhuah a ni a, sulphur chloride cold vulcanization method hmuhchhuah a nih dan.
Kum 1904 khan carbon black hi rubber. ah hman theih a nih thu an hmuchhuak a.
2.rubber auxiliary thlah thumna a ni.
[1980~PRESENT] He stage-a rubber additives awm dan ber chu environment humhalh leh multi-function. te an ni.
Kum 1980~1981 khan promoter NS chu siam a ni.
Kum 1985 khan Environment Protection Promoter MTT chu hman tan a ni.
Kum 1991 atang khan Environmental Protection Non-Nitrosamine promoters, sulfonamides, zinc salt promoters, sulfides, anticoke promoters leh promoter dangte chu a hnungzuiin siam leh hman a ni tawh. ZBPD, TBSI, CBBS, TBZTD, TIBTD, ZDIBC, OTTOS, ZBEC, AS100 leh as100 leh as100 leh as100 te chu an hlawhtling hle a ni.