... can produce any shape according to customers’ need.Order sample: d=6mm, c=12mm, Le=200mm, Lu=180mm, a=30mmPlease specify as ... 1650C )M1800 (heat furnace temperature 1700C)Standard sizes:M1700 type (d/c): dia3/6, dia4/9, dia6/12, dia9/18, dia12/24M1800 ... type (d/c): dia3/6, dia4/9, dia6/12, dia9/18, dia12/24 ...