The synthesis methods of isobutyl acetate catalyzed by p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, cupric chloride bi - hydrate, stannic chloride pentahydrate, ammonium ferric sulfate dodecahydrate, sodium bisulfate monohydrate, potassium bisulfate, chitosan sulfate, sodium dihydrogen phosphate, rare earth metallic oxide, solid super acid, heteropoly acid and molecular sieve etal were reviewed
摘要評述了對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水三氯化鐵、二水氯化
銅、五水四氯化錫、十二水合硫酸鐵銨、一水硫酸氫鈉、硫酸氫鉀、殼聚糖硫酸鹽、
磷酸二氫鈉、稀土金屬氧化物、固體超強酸、雜多酸和分子篩等催化劑催化合成乙酸異丁酯的方法。
Fittings dept. : the spectacle fittings has novel style and complete breed whose main material are brass, cupronickel, phosphor copper, nickel, mangansese alloy, aluminium magnesium alloy, stainless steel, memory metal and other kind of hardware goods fittings and so on
配件部：眼鏡配件款式新穎品種齊全，主要材質有：黃
銅、白
銅、
磷銅、鎳、錳合金、鋁鎂合金、不銹鋼、記憶金屬及其它各類五金製品配件等。
Cupric pyrophosphate for electroplating use
電鍍用焦
磷酸
銅
Industrial circulating cooling water - determination of undissolved material in acid, phosphorus, ferrum, aluminium, calcium, magnesium, zinc and copper for sludge and corrosion products
工業循環冷卻水污垢和腐蝕產物中酸不溶物
磷鐵鋁鈣鎂鋅
銅含量測定方法
Methods of chemical analysis for phosphor copper ingots
磷銅錠的化學分析方法
Phosphor bronze and nickel silver sheets, plates and strips
磷青
銅和鎳銀合金薄板板材和帶材
Corrosion inhibition of low phosphonic copolymer on brass
低
磷共聚物對黃
銅的緩蝕作用
Specification for copper - tin - phosphorous alloy rods and sections
銅-錫-
磷合金棒材和型材規范
Great american bronze strings combine the brilliance of 80 / 20 alloy strings with the great sustain and long - lasting characteristics of phosphor bronze
琴弦集合了80 / 20合金琴弦的優點和
磷銅琴弦延音出色，經久耐用的特點。
Standard test method for gravimetric determination of phosphorus in phosphorus - copper alloys or phosphorus - copper - silver alloys
磷銅合金或
磷銅銀合金中
磷的重量分析測定的標準試驗方法
Copper phosphorus brazing filler metals
銅磷銅焊金屬焊料
The company is mainly engaged in the research, devlopment and production of cmc welding material series including weldingwire, welding rod, welding compound, the main prlducts include co2 gas - shielded welding wire, submerged arc welding wire, weathering resistant steel welding wire, coredelectrode, copper & copper alloy welding rod, cast iron welding rod, buttering welding rod, copper base brazing alloy, phosphorus copper brazing alloy, welding flux 430 and welding flux 431 series, 68 kinds and over 100 standards. the company is one of the largest welding material production enterprises in central south china
公司產要產品有： co2氣體保護焊絲、埋弧焊絲、耐侯鋼焊絲、不銹鋼焊絲、
銅及
銅合金焊絲、鋁及鋁合金焊絲、結構鋼焊條、不銹鋼焊條、鑄鐵焊條、堆焊焊條、
銅基釬料、
磷銅釬料、焊劑430 、焊劑431等，擁有四大系列六十八個品種一百多種規格焊接材料，是中南地區目前品種規格最全的焊接材料製造企業之一。
1 copper phosphorus brazing filler metals erratum 1
磷銅硬釬焊填焊金屬
Methods for chemical analysis of copper phosphorus brazing filler metals
磷銅硬釬焊填充金屬化學分析方法
Available in cat 5e or cat6, t568 a, t568 b wiring. meeting every cabling requirement
符合國際標準的rj45八線簧片:
磷銅材質，
Standard specification for phosphorized coppers - refinery shapes
磷銅標準規范.精煉型材
Phosphorus segregation and effect on mechanical properties of twin roll strip cast high p and cu steels
雙輥鑄軋高
磷銅鋼薄帶的偏析行為及對力學性能的影響
Phosphor copper metal
磷銅金屬
The progress in research of near infrared spectroscopic technology for rapid determination in food component and its quality controlling
電感耦合等離子體質譜法測定鉬精礦中的砷錫磷銅鉛鈣鎢鉍
