xov xwm

Phenolic resin 101 yog ib qho alkyl phenol etherified phenolic resin nrog hnyav ntawm butanol.Soluble hauv benzene, butanol thiab lwm cov kuab tshuaj, Dhau li ntawm cov yam ntxwv ntawm kev ua haujlwm siab thiab kev ua haujlwm zoo, nws ua tau zoo hauv kev ruaj ntseg, kev sib raug zoo, dej tsis kam thiab tshuaj lom neeg.

Phenolic cob


Post lub sij hawm: May-27-2022