This standard specifies the classification,requirements,testing methods,inspection rules,packaging,marking,transportation,storage,quality certificate and order list (or contract) of seamless inner grooved copper tube.
This standard is applicable to seamless inner grooved copper tube (hereinafter referred to as tube) for air conditioner and refrigerator units.
定价: 552元 / 折扣价: 470 元 加购物车
This standard specifies technical requirements,testing methods,inspection rules,marking,packaging,transportation,storage,quality certificate and order (or contract) for tin ingot.
This standard is applicable to tin ingot products produced by pyro-refining or electrolytic refining.
定价: 372元 / 折扣价: 317 元 加购物车