1. Suction cup hmangin restore rawh:
Aluminum plate indented hnuah suction cup hmangin a siam tha leh thei a ni. A hmasa berin suction cup size dik tak thlang la, concave area lai takah dah la, chutah chuan suction cup handle chu nghet takin press la, aluminum plate-a concave area chu suction cup nen chawi sang rawh.
2. Thermal expansion principle hmanga siamthat leh:
Suction cup bakah hian thermal expansion principle pawh restoration atan hman theih a ni bawk. Step bikte chu hetiang hi a ni: Heating tool hmangin aluminum plate vel a metal chu ashen a nih thlengin recessed aluminum plate chu tihlum rawh. Tichuan, heating kha titawp la, minute engemaw zat nghak rawh. Hetih lai hian aluminum plate vel a metal chu thermal expansion avang hian a pianphungah a zau a, chu chuan concave area te chu zawi zawiin leh a pianphungah a lo harh chhuak thei a ni.
