帮忙出黑的是真的吗

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                        帮忙出黑的是真的吗DIZHI:JIANGSUSHENGDONGTAISHISHIYANZHENNANGONGYEQU



                        不锈钢管中不锈钢标准的分类和分级

                        作者: 来源: 日期:2019-9-28 14:38:08

                        帮忙出黑的是真的吗BUXIUGANGBIAOZHUNDEFENLEIHEFENJI:

                        帮忙出黑的是真的吗1、4-1FENJIFENLEI:①GUOJIABIAOZHUNGB ②XINGYEBIAOZHUNYB ③DIFANGBIAOZHUN ④QIYEBIAOZHUNQ/CB;

                        2、4-2 FENLEI:①CHANPINBIAOZHUN ②BAOZHUANGBIAOZHUN ③FANGFABIAOZHUN ④JICHUBIAOZHUN;

                        3、4-3 BIAOZHUNSHUIPING(FENSAN-JI):YJI:GUOJIXIANJINSHUIPING,IJI:GUOJIYIBANSHUIPING,HJI:GUONEIXIANJINSHUIPING;

                        4、4-4GUOBIAO:GB1220-84 BUXIUBANGCAI(IJI),GB4241-84 BUXIUHANJIEPANYUAN(HJI),GB4356-84 BUXIUHANJIEPANYUAN(IJI),GB1270-80 BUXIUGUANCAI(IJI),GB12771-91 BUXIUHANGUAN(YJI),GB3280-84 BUXIULENGBAN(IJI),GB4237-84 BUXIUREBAN(IJI),GB4239-91 BUXIULENGDAI(IJI)。


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                        帮忙出黑的是真的吗

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