Dealers have already got wise to the trend and increased their prices accordingly.交易商已经摸清了动向，相应提高了价格。Movement against the trend subdivides into a three - wave pattern or some variation involving several three - wave patt...
Positioning plate is usually used in fixing the place of anode and cathode plate in electrobath.定位板主要是用来固定阳、阴极板在电解槽中的位置.Double shafts type unwinder with automatic positioning control, automatic tension control, automatic...