Thin-wall article

A process for manufacturing a thin-wall article, comprising:

• injection-molding a polyamide resin obtained by polycondensing a diamine and a dicarboxylic acid, or a polyamide composition comprising the polyamide resin,
• wherein 70 mol % or more of a diamine structural unit is derived from xylylenediamine and the polyamide resin has a first melt viscosity of 50 to 200 Pa·s as measured at a temperature of a melting point plus 10° C. for a holding time of 6 minutes at a shear rate of 122 sec−1, and wherein an inlet temperature (Tin) and an outlet temperature (Tout) of a cylinder in which the polyamide resin or the polyamide resin composition comprising the polyamide resin is melted satisfy the following relation (1):
• Tout≧Tin+20° C. (1).