关于felts的百科

• felts造句怎么写

• chemise,felt,forhats(handkerchieffelts)Ordinaryalumina-silicaterefractoryfiberfeltsSomemayneedreplacementpartssuchashammersorfelts.headgearconsistingofhatfoundationscoveredwithfeltchemises(i.e.,handkerchieffelts)Testmethodforheatinglinearshrinkageofo...
• 2018-02-0124555