形状 Shape | 锥形管、D形管、椭圆管、梯形管、六边形管、三角型管、V型棒、U型棒 Conical tube, D-shaped tube, Elliptical tube, Trapezoidal tube, Hexagonal tube, Triangular tube, V-shaped rod, U-shaped rod, |
孔径 Aperture | 多孔(双孔、四孔、六孔,七孔,八孔,双排三孔)、椭圆孔、矩形、正方形、三角形,偏心孔、D型孔 Multi-hole (double holes, four holes, six holes, seven holes, eight holes, double row three holes), elliptical, rectangle, square, triangle, eccentric, D-shaped |