大口径钢管ZHIJINGGUOGONGYIJIAGONGCHULI，KEFANGZHIHUOJIANHUANZAIYUNSHUYUSHIYONGGUOCHENGZHONGFASHENGHUAXUEHUODIANHUAXUEFANYINGFASHENGFUSHIXIANXIANGDEGANGZHIGUANDAO。

主要的工艺是

1.IPN8710（ZHUYAOSHIYONGYUYINYONGSHUIGUANDAO），

2.2PE/3PE   CENGHUANYANGFENMO，   CENGJIAOZHANJI,DISANCENGJUYI。HUANYANGMEILIQING（YOUHUANYANGSHUZHI、MEIJIAOYOULIQING、FANGXIUYANLIAO、ZHUJI、GAIXINGANPEIZHIERCHENG。CHANPINJUYOUGANZAO，FUZHELIHAO、ROURENXINGHAO，SHUANGZUFENBAOZHUANG、SHIGONGFANGBIAN。JUYOUNAISUAN、NAIJIAN、NAIYAN、NAISHUI、NAIYOUDENGTEDIAN）。

3.HUANYANGFENMO（CAIYONGJINGDIANPENTUGONGYIZAIGANGGUANBIAOMIANTUFUHUANYANGFENMO，YICICHENGMO。GAITUCENGJUYOUTUFUCAOZUOJIANBIAN、   、TUCENGKANGCHONGJIHEKANGWANQUXINGNENGHAO、NAIWENXINGGAODENGYOUDIAN）。

ZHUYAODEZHIXINGBIAOZHUNFBEHUANYANGFENMOZHIXINGSY/T0315-1997《GANGZHIGUANDAORONGJIEHUANYANGFENMOWAITUCENGJISHUBIAOZHUN》，2PE/3PEZHIXINGSY/T0413-2002（SHIYAN）《MAIDIGANGZHIGUANDAOJUYIXIWAITUCENGJISHUBIAOZHUN》。

大口径钢管CHANPINTEXING：GUHUA，LIMIAN、QUMIAN、SHIGONGBULIUGUA；YOULIANGDEXINGNENG，NENGJINGSHOUDADUOSHUHUAXUEJIEZHIDEQINSHI；YOULIANGDEWULIXINGNENG，DUIJINSHUDICAIJUNJUYOULIANGHAODEFUZHELI；100%GUHANLIANG，   ，DUIHUANJINGYOUHAO；TUCENGWUJIEFENG，   BIMIANLOUDIANYINHUAN。

DAKOUJINGGANGGUANZHUYAOYONGTU：JIAKONGGUANDAO、ZHIMAIGUAN、RANQIGUANDAO、SHIYOUGUANDAO、SHIZHENGWUSHUIGUANYIJIGELEIGANGZHIGUANDAONEIWAIBI。