Product introduction
Product Name: Silicone seal, O-ring
Product Material: Food grade silicone
Product Specifications: OD. 5 * 1.5mm that is, the outer diameter of 5mm wire diameter of 1.5mm, inner diameter = 5-1.5 * 2 = 2mm, and so on
CS: 4mm
Product features
With good sealing, anti-deformation, high temperature resistance (200 ℃), low temperature resistance (-35 ℃), moderate hardness (55 degrees), wear-resistant, waterproof, insulation.

D is the outer diameter, d is the inner diameter, r is the wire diameter (all are diameters, unit: mm )