Q41F-16C
Q41F-25C
Q41F-40C
聚四氟乙烯PTFE
增强聚四氟乙烯
VUILUK PTFE
对位聚苯PPL
Q41F-16P
Q41F-25P
Q41F-40P
Q41F-16R
Q41F-25R
Q41F-40R