日韩美女少妇-国产情侣免费视频-色婷婷精品视频-男女无遮挡免费视频-玉势 (1v1 高h)-日韩在线色-国产在线h-国产私拍-完全免费在线视频-午夜老司机福利-成年人晚上看的视频-性xxxx视频播放免费-国产不卡毛片-老太婆性杂交视频-激情婷婷网-精品美女久久久久

Features:
1) Small flow resistance
2) Swift opening and closing at 90-degree angle
3) Compact structure
4) Excellent sealing performance
5) Easy maintenance
6) Widely used in water works, power generating factories, chemicals, food, paper
making and pharmaceutical industries

Inner packing:
Carton

Outer packing:
Wooden cases