The processing time can be obviously shortened, insulationgrade can be increased.
它明显地缩短了工艺时间，提高了绝缘等级。
2
To deal with corrosion at weld joint, shielded inert gas are will be used and the insulationgrade raised.
采用非熔化极惰性气体保护焊，并提高焊口绝缘等级，克服焊口的晶间腐蚀。
3
Also, the insulation was replaced to achieve equivalent quality of new houses as to meet the 4th grade energy saving performance evaluation program requirements in Japan.