256HP1583123772Years ago 348
Square tube is made of different materials. It needs qualified inspection by relevant staff before l...
263HP1458166282Years ago 381
The secondary grouting pipe can only be grouted once and cannot be reused.Process flow: drill in pla...
35HP1626574702Years ago 329
Significant. As for the combined welding of steel pipe with high-frequency preheating,Cocos Islands4...
717HP1274435422Years ago 327
and shall be supplied according to the scheme.The domestic prospect is promising, and there is a la...
122HP1172949212Years ago 359
Then clamp the branch pipe with your thumb, clearly put forward the glass test tube, rotate and rele...
984HP1437554932Years ago 357
The finished product has smooth surface, flatness error + / - mm / m length, wear resistance and ma...
984HP1437554932Years ago 332
Classification introductionHowever, what we need to do now is to improve the production technology l...
263HP1458166282Years ago 378
The secondary grouting pipe can only be grouted once and cannot be reused.Repetitive grouting pipe c...
570HP1556427002Years ago 378
A: thick blister refers to that the thickness of raw materials used exceeds mm and cannot be blister...
632HP1955065912Years ago 397
The cooking materials and foods refrigerated in the quick-frozen warehouse contain a certain amount...