硬质胶
- 网络ebonite
硬质胶-
4严格按正畸医生的要求戴用橡皮圈和牵引头帽等辅助装置。硬橡皮撑轮圈，硬质胶胎圈
Wear ligating modules , headgear and other accessories as instructed by your orthodontist . hard rubber bead
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采用内衬天然硬质胶、外衬丁基胶的内硬外软复合胶层，可取得更好的耐腐蚀与防冲耐磨效果。
Good corrosion and erosion resistance could be achieved by application of internal hard natural rubber lining and internal butyl rubber .
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我们认为：这是一双非常好的鞋子，其特色是防滑设计、采用摩擦力好的硬质胶材的钻石形深沟纹大底。
We Say : A great shoe , the new800 features a deep diamond-shaped lug design of both sticky and hard rubber for good traction .
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结果表明，在硫化反应前期，硬质SBR胶料中交联结构起主导作用；
The results showed that the crosslink structure in SBR ebonite compound was predominant at the early stage of vulcanization ;