Act for the transform:Various specification sees the scope glass;
1, the boron si sees the scope sheet glass,
2, the steel turns the boron si to see the scope sheet glass,
3, the quartz sees the scope sheet glass, quartz glass tube,
4, meter;The instrument uses the glass tube, quartz glass tube,
5, the physics and chemistry room uses the instrument of glass,
6, the natural ore sees the scope slab,Hot-resistant be up to 1800degrees.
== Hot-resistant request==

The steel turns 200 ℃s of the glass of boron si, hot-resistant ≤
Quartz glass, 1200 ℃s of hot-resistant ≤
1800 ℃s of natural mineral stone glass, hot-resistant ≤

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