: ① Flux: Disposable extinction rosin flux, total synthesis of hydrogen Disposable rosin flux, low-volume disposable solid rosin flux, colorless no-clean flux, lead-free flux, spray tin flux, water-based flux and all kinds of thinners, cleaning agents, there are eight series of more than 40 varieties. ② electronic assembly of yellow plastic, red plastic, green plastic, vinyl. ③ insulating paint (varnish) series: from the dry type, dry type. ④ SMT: solder paste, lead-free solder paste, red plastic patch. ⑤ free solder bar (bar).