2. Whakaputaina te mata o Q345B kōpae kōpae, Q345B kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae-Q345B kōpae kōpae kōpae kōpae kōpae-Shandong Dingyu Metal Material Co., Ltd.Ko te matauranga o nga tubu matao o Q345B e mau ana, e mau ana ki te whakawateatanga i te hinu, i te puehuQ345B cold drawn square tubes use organic chemistry and electrolysis. Ko te huarahi, ko Q345B matao, e tika ana ki te tangohia i te pakoko karere ki runga ki te mata o te pakoko karere K345B, a e kore e taea te putea te whakakorea i te pakoko rau me te kaukiriMo reira, ka meatia tenei mohiotanga ki te whakauru anake ki te whakatupu, ki te mahi i te whakaoho.He tika.
3. Carry out pickling passivation for Q345B seamless square tubes. I te whiriwhiringa i te paihere mo Q345B, he kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kōpae kE whakakahoretia ana te pūpa karere o te Q345BIt is often divided into two methods. Ko te whakaaro mo te whakatupuhanga, ko te turanga wai kimiki e taea e tino horoia te mata.He pakeke ki te whiwhi, he pakeke ki te whiwhi i nga huatanga e kitea ana e te katoa.
