2 Drainages 4.1.2.1 Sewage Sewage is treated with Sewage system drained to Sewage piping network outside the factory.

4.1.2排水孔 4.1.2.1污水排出的污水是生活污水處理廠外管網(wǎng)瑟瑟欧，污水下水道系統(tǒng)色偷偷66。

Strengthening, reinforcement, filtering, drain panel for soft, ground handling, geodetic cloth for separating and filtering, artificial lawn for, playground, drain, cloth, roadbed cloth for railway and highway, waterproof material for roof, dyke fortifying cloth, cloth for harbor base, substrate for asphalt, felt, lining cloth for sewer and irrigation canal, soundproof, heat-resisting, material for building

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A sewer of fine clothing.

他們得每年一次沖洗市內(nèi)的下水道。

A sewer of fine clothing.

這根管子連接下水道亚洲h视频免费观看。

He focuses on two yellow fire hydrants and a grate expelling steam.

他注意到操場上有兩個黃色的消防栓和一個正在噴發(fā)蒸汽的下水道鐵格柵欧美精品一区yz。

Service project 1, pipe clean-up: 22,819,364 (1) cleaning of septic tanks, oil-water separator tanks, sewage treatment and cleaning of pool building water tanks, cisterns, swimming pools (2) cleaning because of animal and plant oils, viscous materials such as manure, sludge and litter caused by blockage of the inflow of municipal pipelines II dredge pipeline:(1) municipal pipelines: available in large-scale machinery, a variety of director dredge Road, municipal sewer pipes and other large-scale (2) industrial pipe: Factory, Sheung Shui, pipelines, water pipelines, ship pipeline dredging, cleaning, repair services (3) bath basin: to clear the various models of bath, basin, vegetables pool, including the V-bends and S-type bends all kinds of pipe (4) toilet: dredge a result of rags, towels, cleaning ball, etc. burst into a variety of soft and hard goods caused by plugging the toilet (5) to leak: dredge a result of cement, sand, hair, cloth and other debris into the floor drain caused by the plug (6) Zun pit: pit long service life inside alkaline urine thickening, under the water, small, slow flow easily plug three.

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Cleaning works: waxing floor cleaning septic tank cleaning disinfecting toiletinsecticidal repair sewer dredging.

清潔工程：洗地打臘化糞池清理消毒殺蟲滅害廁所下水道疏通維修。

While setting the table he breaks a plate and throws the pieces into the garbage pail; then, on second thought, he picks them up again to wrap them in a newspaper. Down in the street he throws the package into the sewer.

在收起餐桌時他碰碎了一個盤子伊人影院在线操在线干影院，他開始時把盤子碎片扔進垃圾桶里色播播网免费播播，后來一想，他把碎片撿起來，用報紙包緊国产理论A片在线观看片，走到樓下日韩AV一级毛片久久久，把那包碎片扔進下水道。

On the other hand, sewer monitoring has begun.

另一方面欧美成人人免费HD视频，下水道監(jiān)測工作已經(jīng)啟動自拍偷拍唯。

But at last she had seen me, just about the way that he saw lampposts , hydrants, and manholes.

不過，盡管她像看見街上的燈柱囯产一级A片久久久免费、消防栓或下水道的檢查井一樣欧洲一级爆干，對我毫不在意，至少她看見了我日韩性爱不卡无码av。