Steel hand wheel hmanga thil tha leh tha lo thliar hranna

Plate handwheel chu one-time stamping leh into of, common Yu leh valve supporting hmanga, market Shang of handwheel type a tam, color pawh fresh bright, quality of plate handwheel, internal structure chu solid of, surface smooth, feel delicate, touch good, not in using handwheel of when, due to friction of role and hurt hand Department skin, addition, some inferior of handwheel, in using a time Hou, surface on will a rawn lang ta oxidation, leh up skin, leh pitted, phenomenon te hi a ni.