Plastic Pipe Mould manufacturer / supplier in China, offering The Sizing Sleeve Is Made of High-Quality Alloy Die Steel, Featuring High Hardness and Good Toughness., The Sizing Sleeve Adopts High-Temperature Resistant Material, Which Is Not Easy to Soften or Deform Under Long-Term High-Temperature Working Conditions., The Sizing Sleeve Is Surface-Hardened, Featuring Scratch and Impact Resistance. and so on.