, imported rods, heat-resistant rods, low-density rods, non-deformation rods, high-strength rods, seal rods, corrosion-resistant rods, groove-resistant rods, acid and alkali-resistant rods, milky white rods, translucent rods, white rods, black Rod, gray rod, green rod, modified rod,
, , rod structure, properties and applications
Which is the best pp board with excellent welding performance?