because it is difficult to control rolling process of molybdenum sheet, there is much defective material and low rate of finished products.
当前钼板轧制工艺过程难以控制,轧废现象严重、成材率低下,寻求适宜的加工工艺势在必行。
the product is guaranteed for 24 months from the purchase date. the importer will remove any defects caused by production and defective material or will replace the device during this period.