Sell smell-proof and  water  pressure  floor  drain

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four revolutionary features
1. quick drainage:the drain core is becoming straitness from the head to the end, the middle ofthe face cover is obturated. all these lead to pressure draining when the drain core is filled with vacuum. this is completely a mew way of draining , up to 3 liters/minute
2 deodorant:at lease 5cm water seal . assure no airleak of pressure resistant
3. mothproof:the water is long and narrowdesigned , with tapered or radian bottom, having the ability of self-cleaning with the help of water pressure. further more , the water seal could be disconnected and washed, for convenience cleaning
4. easy clean: made of stainless steel . no shape change , no crack and other default. the working life is 50 years