... cables, hoses,pipes and tubing.Technical Requirement 1. Exterior surface: Smoothly, No starving crack scuff and burr, No ... patency foaming and uneven, No inclusion. 2. Surface color: Black, Non-blushing, No obviously off-color. 3 ... Products Inner diameter: 8-200mm Types: Bright Flat Surface, Bright Cambered Surface; Matt Flat Surface, Matt Cambered Surface. Color: Black, Gray, Red, Yellow, ...