rigid plastic meaning in Chinese

硬性塑胶
硬质塑料

General rules for testing fatigue of rigid plastics
检测硬质塑料疲劳性的一般规则
Determination of deflection for rigid plastic pipes
硬质塑料管材弯曲度测量方法
Plastics . modulus of longitudinal elasticity of rigid plastics
塑料制品.刚性塑料纵向弹性的模数
Standard test method for compressive properties of rigid plastics
硬质塑料抗压特性的标准试验方法
Test method for flatwise flexural impact resistance of rigid plastics
硬塑料耐平地软冲击试验方法

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