Welding time refers to the whole process of welding, including the time when the solder metal reaches the soldering temperature, the soldering time, the flux function and the working time of the natural metal alloy. When the welding temperature is stable, the appropriate welding time should be determined according to the shape, nature and characteristics of the welded part. The welding time is too long, it is easy to protect the components or the welding parts; if it is too short, the welding request cannot be reached. Generally, each solder joint is soldered once for a maximum of 5 seconds. UZikalala ozofungiswa ngasekupheleni kwale nyanga, uzalelwe eNdwedwe ngo-1973, wajoyina umzabalazo ena-15 weminyaka. Uke waba ngunobhala wophiko lwentsha lwe-ANC esifundazweni, waba yiphini likanobhala, waphinde waba ngunobhala njengoba engusihlalo we-ANC. Customer reviews4.7 out of 5 stars74.7 out of 5 stars5 star64 star03 star12 star01 star0Share your thoughts with other customersWrite a customer reviewSee all 7 customer reviewsTop customer reviews5.0 out of 5 starsA Library of prayerByDeacon Malcolmon 1 May 2012Format: Leather Bound|Verified PurchaseFirst, it must be said, that this is the USA version, also accepted in many other countries. It is not the version for communal use in the UK, Ireland and Australia. For that, the Divine Office in three volumes published in UK by Collins is required. Having said that, this 4-volume set is perfectly acceptable for private recitation of the Hours as both versions are translations of the Latin Liturgia Horarum of the Catholic Church. As an ordained minister in the Church, I am required to use the three volume volume set as approved by the Bishops' conference when praying in common. In private recitation (which for me is most of the time) we are free to choose. This 4-volume set of the Liturgy of the Hours is beautifully bound and printed as befits such an important book. The print is quite large and easy on the eye, being printed on cream paper with minimal bleed-through: a quality product at a very good price. (The Collins set has smaller, lighter print and is more expensive).Liturgically, it includes, in the 4-week psalter, the optional psalm prayers which, though mentioned in the General Instruction on the Liturgy of the Hours (para. 112) are not included in the UK version. I find them a great help in concluding each psalm. The Psalms are the same translation, The Grail version, as in UK, but the antiphons have slightly different wording but the same meaning. The selection of hymns in this version is quite different from th UK selections, but hymns are in any case personal in private recitation and may even be omitted or replaced by one of the poems on offer. All readings and most of the canticles are taken from the New American Bible and the gospel Canticles: The Benedictus, Magnificat and the Canticle of Simeon are the ICET version (optional in UK). I thoroughly recommend this 4-volume leather-bound set for those seekiing a quality product, who recite the Office privately in UK, especially to those with less than perfect eyesight (like me!).Read more22 Comments|