91精品国产亚一区二区三区老牛_91精品国产亚洲_91精品国产一二三_91精品国产一区_欧美两根一起进3p做受视频_欧美另类激情

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