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31. To cure pit collapse with residual soil from granite, what measure can be chose is to backfill with bags of sand and infiltrate steel tube or reinforce steel bar to pin up filler.

32. The invention relates to a new process method and device of flash butt welding joint in steel bar continuous connection.

33. Test results for the behavior of bond and slip between steel bar and concrete within a segment bounded by two primary cracks in a reinforced concrete tension member or a flexural member are presented.

34. The longitudinal crack of steel bar is the main factor that influences its quality.

35. A rolling finishing method for stainless steel bar surface conditioning is put forward.

36. Rebuilding methods and implements steps of ultra fine grained steel bar product line are put forward.

37. In the structure of Communication Information Center of Shenzhen, the steel bar passed through rigid joint is adopted in CFST frame.

38. The circuit can be used as reference for technical reformation in middle or small steel bar mill.

39. The test included anchoring force of prestressed anchor cable, frictional coefficients, stress of concrete and steel bar and structure deformation.

40. The lateral surface of at least one steel bar of the double steel bars is slant face.

41. Furthermore, some advices are provided for calculating the strength parameters of steel bar at elevated temperature.

42. The other key technique in using an on-train GPR deals with the estimation and elimination of the influence of reinforcing steel bar in the cement crosstie.

43. Stress corrosion in flash welding butt joint of steel bar HRB400 is studied.

44. In the process of round coal bunker construction, the interval distance problems are settled by the new ways of steel bar slip way, steel bar framework, and the like.

45. Pass - free Rolling is an advanced technology which can optimize steel bar production.

46. The inspection of steel bar protection layer in concrete components, however, is one of the main steps of inspection lot acceptance.

47. The oil stain and iron rust on the foot bolt or steel bar must be completely removed.

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48. Longitudinal bar played an important role to resist the loads in sandwich beam, while the link steel bar and pin key steel bar did not lend much support to resist the loads.

49. The results show that the steel bar coated with protection shell increases the ability resisting corrosion.

50. Through analyzing the steel bar instability, blasting height of pillar and collapse direction were determined.

51. While the amount of chlorion on the surface of reinforcing steel bar exceeds the limited value, it could occur the corrosion on the reinforcing steel bar.

52. Ask present's steel bar. Cement. Grit. Brick. And so on building material prices?

53. It is made up of anchorage steel plate, screw nut and anchorage steel bar.

54. Include: Shatter-resistant protecting rubber frame, stainless-frame front cabinet, stainless-frame back cabinet, volume button, ON/OFF switch, shatter-resistant steel bar.

55. This is because in the sea sand including the salts material, can corrode the steel bar, the destruction concrete structure.

56. Steel skeleton concrete is characterized by complex nodal, heavily - distributed steel bar, laborious casting.

57. In bearing spring point is due bedspring of steel bar consolidate, the fabric of fixed bedspring should be corroded not easily and insipidity, enclothe the fabric on bedspring Alexandrine character.

58. The writer inventively uses microcomputer to control spiral steel bar hoop machine and designs a digital control system based on single chip machine for spiral steel bar hoop machine.