Diameter: 50mm Shape: three bellows Application: tobacoo industry Material: NBR,SI,SE,PU,FKM,NR,EPDM Yonsha has technicians to design rubber compounding. Yonsha can promise our rubber 3P(price, processing and properties) are the best. Low prices,a huge selection, qulified goods and short time of delivery have made Yonsha suction cups worldwide.