petroleum pitch
短语词组
- petroleum pitch enamel 石油沥青漆
- petroleum pitch coke 石油沥青焦炭
- petroleum pitch fibre 石油沥青纤维
- petroleum pitch enareel 石油沥青漆
- petroleum pitch coating 沥青外覆盖层
- petroleum pitch based MCMB 石油沥青基MCMB
- petroleum pitch based -carbon fiber 沥青基碳纤维 返回 petroleum pitch