PVC线槽的规格尺寸主要包括以下几种：

20mm x 12mm

25mm x 12.5mm

25mm x 25mm

30mm x 15mm

40mm x 20mm

14mm x 24mm

18mm x 38mm

20mm x 15mm

20mm x 20mm

20mm x 25mm

30mm x 20mm

30mm x 30mm

30mm x 35mm

30mm x 40mm

30mm x 50mm

40mm x 25mm

40mm x 35mm

40mm x 40mm

40mm x 60mm

45mm x 25mm

45mm x 33mm

45mm x 45mm

50mm x 25mm

50mm x 35mm

50mm x 50mm

60mm x 30mm

60mm x 40mm

60mm x 50mm

65mm x 30mm

65mm x 40mm

31. 80mm x 40mm

32. 80mm x 50mm

33. 100mm x 50mm

34. 100mm x 60mm

这些规格尺寸可以满足不同应用场景的电线敷设需求。用户可以根据实际布线需求选择合适的规格。