Heat stabilizers of rare earths are highly efficient, non poisonous and cheap. They are new heat stabilizers for PVC.
稀土稳定剂具有高效、无毒、价格低廉等优点，是PVC材料加工应用中的一种新型热稳定剂。
Testing results showed that the former as heat stabilizers for PVC were of better performance and expected to be extensively used in PVC processing.
结果表明二聚酸钙或二聚酸锌作为PVC的热稳定剂具有更好的性能，有望在PVC加工中获得广泛应用。
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