| ประโยคภาษาจีน : 中文句子 | 
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|  shì是  yì zhǒng一种  jī yú基于  tóng铜  hàn jiē焊接  yòng用  de的  tóng铜  hàn焊  róng jì溶剂  běn本  róng jì溶剂  kē lì颗粒  jūn yún均匀  xì wēi细微  zài在  wēn dù温度  wèi为  qiān hàn钎焊  zǐ tóng紫铜  jí及  huáng tóng黄铜  hé jīn合金  qì hàn气焊  huò或  qiān hàn钎焊  shí时  zuò作  zhù róng jì助熔剂  yòng用 | 
| QJ301 is a copper-based brazing welding used solvent, the solvent particles uniformly fine at a temperature of 850-1150 ℃, copper and brass brazing alloys gas welding or brazing flux when used. |