IIR1751, which is available now is the non-replaceable material for manufacturing meridian tube and tubeless tyre.
牌号的丁基橡胶是制造子午胎内胎和无内胎轮胎不可替代的材料。
2
Phosphorus and its compounds are non renewable and nonreplaceable limited resources.
磷是一种不可更新、难以替代的有限自然资源。
3
The electric spark build-up welding technology features less heat input and negligible residual stress etc., which is non - replaceable in the welding of special key components.