Internal elbow
内丝弯头
Teeth
内丝三通
External elbow
外丝弯头
Male tee
外丝三通
HDPE double wall corrugated pipe
HDPE双壁波纹管
MPP cable protection tube
MPP电力电缆保护管
PE steel skeleton composite pipe
PE钢丝骨架复合管
Floorheatingpre-filter
地暖反冲洗前置过滤器
PVC-U double wall corrugated pipe
PVC-U双壁波纹管
Backwashpre-filter
反冲洗前置过滤器