CHECK THE QUALITY OF PRODUCTS AND PRODUCTION-The quality of the materials, the production process and improve the drain pipes have to be parts KCS and customer reviews and approvals.* Remove-concrete sewer will be removed because of damage or disability are unable to meet the technical requirements. The details of the drain pipe can be removed because of the following reasons:+ Cracks along than sewers, except a single definition at the top of the drain pipe if there is not to exceed the thickness of seams.+ Disabled due to The quantitative ratio, mixing and pouring the mould does not meet regulations, or surface defects created the pitting or in external structure negatively affected the function of drain pipes+ The first sewers does not fit usual with coal part and the center of the tube out of bounds distortions.+ The beginning of damaged pipes or fracture severely affected or could not be+ Any continuous fracture cracks on the surface with a width of 0.3 mm or more has a length of 300 mm or larger, whether it's where on the concrete drain body.* Labeling of products and factory-The following information will be printed on all drain pipes:+ Technical indicators and inheritable.+ On production.+ The name or trademark of the manufacturer.+ Name and the necessary information about the manufacturer.+ At one end of reinforced cới pipes or elliptical quarter will be closed explicitly Marxist in the production process or soon after, in the inside and outside of the pipe opposite the body along the axis of the elliptical core or along the vertical axis to provide core-quarter.+ Labels are engraved on the body or paint tubes by waterproofing coating on surface of concrete sewer pipes.* Released:+ must be agreed by the Steering Committee and the technical department.+ The external surface and the inside of the drain pipes require are flat, not have the points up or down the hollow wood.On the surface of the pipes do not allow the empty hole depth.+ When the crane drain from finished goods up cars or on transport is forced or correct position specified by technical staff to ensure the drain is not cracked and easy cable threaded hook.+ When folded up cars also have to buffer the sides and insert statements into the car, not more than two layers, between the two layers of the drain must also have wood stats for sure.+ When the product is exported out of the company will have the votes due to product quality parts signed and certified KCS in relation to the goods exported.
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