用量及硫化条件和4010NA类防老剂相同,一般为二份.Dosage and vulcanization condition is the same as 4010 NA antiager.采用(WSLMB)的复合防老剂防老化效果较好.The combination of the phenolic antioxidants WSL and MB have better effects against the aging.讨论了防老剂的品种...
Xingkai textile is a multi - directional company focusing on manufacturing and wholesaling of greige cloth.兴凯纺织是一家集生产加工、经销批发的多方向发展公司、主营产品为坯布.The directional microphone trained on Foresters Cottage could pick up every wor...