1. Tube kub thiab tshuab moulding kub: qhov kub yuav tsum tsis txhob siab dhau, siab dhau heev lawm, tsis muaj yaj viscosity thiab yooj yim rau deform, uas ua rau lub thickness ntawm lub raj tsis sib npaug thaum hloov; Thaum qhov kub thiab txias tsis dhau, cov khoom feem ntau muaj kev ntxhov siab ntau dua, uas yooj yim rau deform thiab kev ntxhov siab tawg hauv cov txheej txheem ntawm kev siv.
2. Txhaj tshuab moulding resin: nws muaj cov txheeb ze molecular hnyav thiab yaj viscosity, thaum lub yaj viscosity tsawg cuam tshuam los ntawm shear npaum li cas thiab ua kub. Cov khoom muaj kev cuam tshuam zoo toughness thiab tsim nyog yaj elongation.