High-temperature furnace High temperature resistant No. 3 No. 5 No. 8 graphite clay Particle molten steel test crucible molten gold and silver steel

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Color classification:: 1# (upper outer diameter 70mm * height 80mm) 2# (upper outer diameter 87 * height 107) 3# (upper outer diameter 105 * height 120) 5# (upper mouth outer diameter 118 * height 145) 8# (upper mouth outer diameter 127 * height 168) 10# (upper outer diameter 137 * height 180) 12# (upper outer diameter 150 * height 195) 16# (upper outer diameter 160 * height 205) 20# (upper mouth outer diameter 178 * height 225) 30# (upper mouth outer diameter 208 * height 260) 40# (upper outer diameter 230 * height 285) 50 (upper mouth outer diameter 257 * height 314) 60# (upper mouth outer diameter 270 * height 327) 80# (upper mouth outer diameter 296 * height 356) 100# ( Catchy outer diameter 321* height 379) 120# (upper outer diameter 345 * height 388) 150# (upper mouth outer diameter 362 * height 440) 200# (upper mouth outer diameter 400 * height 510) 250# (upper mouth outer diameter 430 * height 557) 300# (upper mouth outer diameter 455 * height 600) 400# (upper mouth outer diameter 526 * height 661) 500 # (upper mouth outer diameter 531 * height 713) 600# (upper mouth outer diameter 580 * height 610)