Center & outer ring & o-ring (viton) for vacuum system and semiconductor equipment: Our firm can offer you center ring or outer ring from nw16 , nw 25 , nw40 , nw50 in 304 grade. The material of o-ring is viton or nbr . Price, moq, deliver time are for reference only, please contact us for correct quotation and product details
Material: Natural rattan (sometimes coated for durability) Handwoven or machine-made Size: Inner Diameter: 3.5 to 4.5 cm (approx. 1.4 to 1.8 inches) Outer Diameter: 5 to 7 cm (approx. 2 to 2.8 inches) Height: 3 to 4 cm (approx. 1.2 to 1.6 inches) Color: Natural rattan color (light tan to dark brown) Sometimes painted or stained in various colors