Details

For the tighten upper with high-temper ature steam intenerating to eliminate the internal stress when connect the uppers, then draw out the Gangbao water and the air betweenthe vampand the last byvacuum treatment,make the vamp close to the last much more,Gangbao is rigid and fixed, caused the baking for short time and passed the vacuum,the vamp surface feels fine, soft and high brightness after the steam treatment.