Until recently, these standards covered PVC (D-2464) and CPVC (F-437) Schedule 80 threaded pressure fitting.
直到最近，这些标准涵盖PV C (D- 2464)和CPVC (F - 437)目录80螺纹压力连接件。
TPB with f &r , bone- like belt , is filled with cotton and other textile and has been sucked in PVC liquid , then molded with high temperature .
本厂生产的全塑整芯阻燃输送带是以绵、涤和棉线纺织而成的整体带芯的骨架，浸渍PVC糊体，经高温塑化而成。
TPB with f &r , bone- like belt , is filled with cotton and other textile and has been sucked in PVC liquid , then molded with high temperature .
本厂生产的全塑整芯阻燃输送带是以绵、涤和棉线纺织而成的整体带芯的骨架，浸渍PVC糊体，经高温塑化而成。
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