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DTH laum pas nrig / laum yeeb nkab siab siab rau quarrying, dej zoo drilling, mining.

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Khoom cim npe

Lub laum yeeb nkab yog cov yeeb nkab uas muaj zog steel siv rau hauv qhov drilling.Nyob ntawm txoj kev drilling thiab lub hom phiaj ntawm kev drilling, cov kav dej tuaj yeem sib txawv tuab thiab ntev, nrog qhov ntev tshaj plaws yog 3-10 meters.Cov kav dej laum tau koom ua ke ib qho los ntawm ib qho raws li kev xyaum ua kom tob rau hauv cov pob zeb.Ua ke, cov kav dej tsim ib txoj hlua tho, uas tuaj yeem txuas tau ob peb kilometers hauv av.

Raw Khoom: Kub dov seamless yeeb nkab, los ntawm BAO STEEL / TPCO / BAO GANG thiab lwm yam, nruj me ntsis raws li cov qauv kev soj ntsuam, los ntawm cov khoom tsim, kev cog ob qho kev tshuaj xyuas, kom ntseeg tau tias cov khoom siv raw khoom zoo.

Tsim nyogProcess:Kev ntxhov siab--Kev kho cua sov--Txoj kev ncaj--NDT--Painting--Packing

Loj		Nominal loj Lb/ft	Xam qhov hnyav hom		Phab ntsa thickness
hauv.	mm	Nominal loj Lb/ft	lb/ft	kg/m	hauv.	mm
2 3/8	60.3	6.65 ib	6.26	9.32 ib	0.28 ib	7.11 ib
2 7/8 ib	73	10.4	9.72 ib	14.48 Nws	0.362 ib	9.19 ib
3 1/2	88.9 ua	9.5 ib	8.81 ib	13.12 Nws	0.254 ib	6.45 Nws
3 1/2	88.9 ua	13.3	12.31 Nws	18.34 Nws	0.368 ib	9.35 Nws
3 1/2	88.9 ua	15.5 ib	14.63 Nws	21.79 Nws	0.449 ib	11.4
3 1/2	88.9 ua	15.5 ib	14.63 Nws	21.79 Nws	0.449 ib	11.4
4	101.6 ib	14	12.93 Nws	19.26 Nws	0.33 ib	8.38 ib
4 1/2	114.3 ib	13.75 Nws	12.24 Nws	18.23 Nws	0.271 ib	6.88 ib
4 1/2	114.3 ib	16.6	14.98 Nws	22.31 Nws	0.337 ib	8.56 ib
4 1/2	114.3 ib	20	18.69 Nws	27.84 Nws	0.43 ib	10.92 Nws
5	127	16.25 Nws	14.87 Nws	22.15 Nws	0.296 ib	7.52 ib
5	127	19.5 Nws	17.93 Nws	26.71 Nws	0.362 ib	9.19 ib
5	127	19.5 Nws	17.93 Nws	26.71 Nws	0.362 ib	9.19 ib
5	127	25.6 ib	24.03 Nws	35.79 ib	0.5	12.7 ib
5	127	25.6 ib	24.03 Nws	35.79 ib	0.5	12.7 ib
5 1/2	139.7 ib	21.90 Nws	19.81 Nws	29.51 Nws	0.361 ib	9.17 ib
5 1/2	139.7 ib	24.70 Nws	22.54 Nws	33.57 Nws	0.415 ib	10.54 Nws