1. working temperature: 260-340 centigrade 2. Color: white, black, natural, beige 3. flame retardant: UL: V-0 Item: Custom Valve seatMaterial: PEEK virgin, PEEK 30GF, PEEK-HPVColor: white, black, natural, beigeSize: according to custom's requirement, drawing will be highly appreciated.Weight: from 0.01gram to 10kgsTolerence: +/-0.04-0.1mm, according to requriementProcessing: precision CNC machine ...